access deny [1420]
 
YEAR TITLE
2023 Recent advances in heterogeneous catalysis of solar-driven carbon dioxide conversion
J Xu, FA Roghabadi, Y Luo, V Ahmadi, Q Wang, Z Wang, H He
Journal of Environmental Sciences
2023 Solid-supported photocatalysts for wastewater treatment: Supports contribution in the photocatalysis process
HM Ali, FA Roghabadi, V Ahmadi
Solar Energy 255, 99-125
2023 Design and Analysis of Highly Sensitive Plasmonic Sensor Based on Two-Dimensional Inorganic Ti-MXene and SrTiO3 Interlayer
SB Saadatmand, MJHN Chemerkouh, V Ahmadi, SM Hamidi
IEEE Sensors Journal
2023 Graphene-based integrated plasmonic sensor with application in biomolecule detection
SB Saadatmand, MJHN Chemerkouh, V Ahmadi, SM Hamidi
JOSA B 40 (1), 1-10
2022 Opto-electro-mechanical properties of lead-free hybrid double perovskites Cs2AgSbX6 (X= Cl, Br, I) for solar cells: A first-principles study
M Babaei, V Ahmadi, G Darvish
Journal of Physics and Chemistry of Solids 169, 110880
2022 Internal Referencing Photoluminescence Probes for Simultaneous Sensing of O2 Gas and Temperature Based on Mn:MAPb(Br/Cl)3 Perovskite
M Saeedi, V Ahmadi, F Arabpour Roghabadi, T Ashjari
Advanced Photonics Research 3 (7), 2100343
2022 DNA sequencing by Förster resonant energy transfer
B Fotouhi, V Faramarzi, V Ahmadi
Optics Express 30 (12), 21854-21865
2022 Stability improvement of perovskite solar cell using photoswitchable and moisture resistant dual-function interfacial layer
M Alidaei, V Ahmadi, SM Mousavi, FA Roghabadi
Journal of Alloys and Compounds 903, 163891
2022 Composite polymer/perovskite quantum dots luminescent material
A Amjadi, T Ashjari, FA Roghabadi, V Ahmadi, K Jalili
US Patent 11,312,899
2022 Stability improvement of MAPbI3-based perovskite solar cells using a photoactive solid-solid phase change material
SM Mousavi, M Alidaei, FA Roghabadi, V Ahmadi, SM Sadrameli, ...
Journal of Alloys and Compounds 897, 163142
2022 Recent Progress on Metal Halide Perovskite Solar Minimodules
Z Yang, Z Liu, V Ahmadi, W Chen, Y Qi
Solar RRL 6 (3), 2100458
2022 First-principles study of lead-free Ge-based 2D Ruddlesden–Popper hybrid perovskites for solar cell applications
M Babaei, V Ahmadi, G Darvish
Physical Chemistry Chemical Physics 24 (35), 21052-21060
2022 Enhancing the efficiency and stability of perovskite solar cells based on moisture-resistant dopant free hole transport materials by using a 2D-BA 2 PbI 4 interfacial layer
FS Ghoreishi, V Ahmadi, M Alidaei, FA Roghabadi, M Samadpour, ...
Physical Chemistry Chemical Physics 24 (3), 1675-1684
2022 Interband plasmon-enhanced optical absorption of DNA nucleobases through the graphene nanopore
V Faramarzi, V Ahmadi, M Heidari, B Fotouhi, MT Hwang
Optics letters 47 (1), 194-197
2021 Lifetime Improvement Of Perovskite Solar Cell Using A Photoactive Phase Change Material
M Alidaei, V Ahmadi, F Arabpour
2021 Iranian International Conference on Microelectronics (IICM), 1-3
2021 The Future of Hybrid and Inorganic Perovskite Materials: Technology Forecasting
K Oniy Aghmiuni, F Arabpour Roghabadi, H Rezvani, M Alidaei, M Falahi, ...
Energy Technology 9 (12), 2100376
2021 Efficiency improvement of perovskite solar cells by charge transport balancing using length tunable ZnO nanorods and optimized perovskite morphology
M Makenali, I Kazeminezhad, FA Roghabadi, V Ahmadi
Solar Energy Materials and Solar Cells 230, 111206
2021 Materials and structures engineering of sun-light absorbers for efficient direct solar steam generation
S Karami, FA Roghabadi, M Maleki, V Ahmadi, SM Sadrameli
Solar Energy 225, 747-772
2021 Highly sensitive crumpled 2D material-based plasmonic biosensors
V Faramarzi, V Ahmadi, MT Hwang, P Snapp
Biomedical Optics Express 12 (7), 4544-4559
2021 Highly Efficient Solar Steam Generators Based on Multicore@ Shell Nanostructured Aerogels of Carbon and Silica as the Light Absorber− Heat Insulator
S Karami, F Arabpour Roghabadi, F Pashaei Soorbaghi, V Ahmadi, ...
Solar RRL 5 (7), 2100048
2021 Design and Simulation of Graphene/2D Interlayer Surface Plasmon Resonance Biosensor Based on Ellipsometry Method
MJ Haji Najafi, V Ahmadi, SM Hamidi
International Journal of Optics and Photonics 15 (1), 27-34
2021 Engineered nano-sphere array of gold-DNA core–shells and junctions as opto-plasmonic sensors for biodetection
N Osanloo, V Ahmadi, M Naser-Moghaddasi, E Darabi
RSC Advances 11 (44), 27215-27225
2021 Charge transfer balancing of planar perovskite solar cell based on a low cost and facile solution-processed CuO x as an efficient hole transporting layer
M Makenali, I Kazeminezhad, V Ahmadi, FA Roghabadi
Journal of Materials Science: Materials in Electronics 32 (2), 2312-2325
2020 Preparation of Poly (dimethylsiloxane) Microparticles via a Co-flow Microfluidic Device and Investigation of Various Parameters Effect on Morphology
F Ghashghaie, F Arabpour Roghabadi, K Jalili, V Ahmadi
Journal of Applied Research of Chemical-Polymer Engineering 4 (3), 26-15
2020 Efficient LED Light Converter based on Perovskite Nanocrystals for Visible Light Communication
M Saeedi, T Ashjari, FA Roghabadi, V Ahmadi
2020 3rd West Asian Symposium on Optical and Millimeter-wave Wireless …
2020 Tapered Plasmonic Waveguide for Terahertz Interconnects: an FDTD Method
M Heidari, V Ahmadi
2020 3rd West Asian Symposium on Optical and Millimeter-wave Wireless …
2020 Enhanced performance of CH3NH3PbI3 perovskite solar cells via interface modification using phenyl ammonium iodide derivatives
FS Ghoreishi, V Ahmadi, R Poursalehi, M SamadPour, MB Johansson, ...
Journal of Power Sources 473, 228492
2020 Refractive index sensor based on wavelength shift analysis in MSM optical fiber structure
Z Akbarpour, V Ahmadi, FA Roghabadi
2020 28th Iranian Conference on Electrical Engineering (ICEE), 1-3
2020 Low-Voltage Electrically-Induced Second Harmonic Generation in a Silicon Waveguide Based on Modal Phase Matching
B Janjan, V Ahmadi, D Fathi
Journal of Lightwave Technology 38 (22), 6272-6279
2020 Facile synthesis of durable perovskite quantum dots film with near unity photoluminescence quantum yield for efficient perovskite light emitting diode
T Ashjari, FA Roghabadi, V Ahmadi
Applied Surface Science 510, 145513
2020 Prolonged Lifetime of Perovskite Solar Cells Using a Moisture-Blocked and Temperature-Controlled Encapsulation System Comprising a Phase Change Material as a Cooling Agent
N Mansour Rezaei Fumani, F Arabpour Roghabadi, M Alidaei, ...
ACS omega 5 (13), 7106-7114
2020 Quasi-Phase Matched Second Harmonic Generation in Plasmonic–Organic Hybrid Structures
B Janjan, V Ahmadi, D Fathi
Journal of Lightwave Technology 38 (6), 1391-1399
2020 Ultrashort optical pulse polarization rotator based on azimuth angle rotation in semiconductor optical amplifier
A Sharifi, M Razaghi, V Ahmadi
Optical Engineering 59 (3), 036108
2020 Asymmetric silicon–polymer hybrid waveguide for second-harmonic generation based on modal phase matching
B Janjan, V Ahmadi, M Miri, D Fathi
JOSA B 37 (2), 376-381
2020 High-Brightness Perovskite Light-Emitting Diodes Using a Printable Silver Microflake Contact
M Payandeh, V Ahmadi, F Arabpour Roghabadi, P Nazari, F Ansari, ...
ACS Applied Materials & Interfaces 12 (10), 11428-11437
2020 Design of a Backscatter-Free Waveguide Based on Photonic Topological Insulators
M Mehdipour, V Ahmadi, R Poursalehi
International Journal of Optics and Photonics 14 (1), 85-90
2020 Durable Perovskite UV Sensor Based on Engineered Size-Tunable Polydimethylsiloxane Microparticles Using a Facile Capillary Microfluidic Device from a High-Viscosity Precursor
A Amjadi, MS Hosseini, T Ashjari, FA Roghabadi, V Ahmadi, K Jalili
ACS omega 5 (2), 1052-1061
2020 Magnetite as Inorganic Hole Transport Material for Lead Halide Perovskite-Based Solar Cells with Enhanced Stability
F Ansari, M Salavati-Niasari, O Amiri, N Mir, B Abdollahi Nejand, ...
Industrial & Engineering Chemistry Research 59 (2), 743-750
2020 Graphene-based Mid-Infrared Plasmonic Isolator with Multimode Interferometer
M Heidari, V Ahmadi
Optics Letters 45 (20), 5764-5767
2019 Engineered Nanopores-Based Armchair Graphene Nanoribbon FET With Resonant Tunneling Performance
M Rahmani, V Ahmadi, R Faez
IEEE Transactions on Electron Devices 66 (12), 5339-5346
2019 Modeling the optical nonlinear effects on DFB-RF laser based on the transfer matrix method
M Aliannezhadi, F Shahshahani, V Ahmadi
Applied Mathematical Modelling 74, 85-93
2019 DNA Nucleobases Sensing by Localized Plasmon Resonances in Graphene Quantum Dots with Nanopore: A First Principle Approach
M Abasifard, V Ahmadi, B Fotouhi, R Roohi
The Journal of Physical Chemistry C 123 (41), 25309-25319
2019 Recovering a degraded solar cell
FA Roghabadi, NMR Fumani, M Alidaei, V Ahmadi, SM Sadrameli, ...
US Patent App. 10/347,432
2019 High power UV-Light Irradiation as a New Method for Defect passivation in Degraded perovskite solar Cells to Recover and enhance the performance
FA Roghabadi, NMR Fumani, M Alidaei, V Ahmadi, SM Sadrameli
Scientific reports 9 (1), 1-11
2019 Efficient Wide Range Telecom Wavelength Conversion in Hydrogenated-Amorphous Silicon-Polymer Waveguide
B Janjan, V Ahmadi, D Fathi, M Heidari
2019 27th Iranian Conference on Electrical Engineering (ICEE), 46-49
2019 Organic-Inorganic Hybrid Perovskite as an Efficient Light Convertor for Visible Light Communication
T Ashjari, FA Roghabadi, V Ahmadi
2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC …
2019 A potential sensing mechanism for DNA nucleobases by optical properties of GO and MoS 2 Nanopores
V Faramarzi, V Ahmadi, B Fotouhi, M Abasifard
Scientific reports 9 (1), 6230
2019 Interfacial defect passivation in CH3NH3PbI3 perovskite solar cells using modifying of hole transport layer
M Alidaei, M Izadifard, ME Ghazi, FA Roghabadi, V Ahmadi
Journal of Materials Science: Materials in Electronics 30 (7), 6936-6946
2019 Design and Analysis of a Graphene Magneto-Plasmon Waveguide for Plasmonic Mode Switch
M Heidari, V Ahmadi
IEEE Access 7, 43406-43413
2019 Analysis of nonlinear polarization rotation by an ultrashort optical pump and probe pulse in a strained semiconductor optical amplifier
A Sharifi, M Razaghi, V Ahmadi
JOSA B 36 (2), 374-382
2019 The effect of Cs cation on the performance of CH3NH3PbI3 perovskite solar cell
N Solhtalab, V Ahmadi, FA Roghabadi, BA Najand
 
2019 Intensity-dependent plasmonic resonance of graphene layer
M Sadeghi, V Ahmadi
 
2019 Stability progress of perovskite solar cells dependent on the crystalline structure: From 3D ABX 3 to 2D Ruddlesden–Popper perovskite absorbers
FA Roghabadi, M Alidaei, SM Mousavi, T Ashjari, AS Tehrani, V Ahmadi, ...
Journal of Materials Chemistry A 7 (11), 5898-5933
2019 Stability progress of perovskite solar cells dependent on the crystalline structure: From 3D ABX 3 to 2D Ruddlesden–Popper perovskite absorbers
FA Roghabadi, M Alidaei, SM Mousavi, T Ashjari, AS Tehrani, V Ahmadi, ...
Journal of Materials Chemistry A 7 (11), 5898-5933
2018 First-Order Forward and Backward Quasi-Phase Matched Second Harmonic Generation in Silicon-Organic Hybrid Structures
B Janjan, V Ahmadi, M Miri, D Fathi
Journal of Lightwave Technology 36 (22), 5137-5144
2018 Long-Term Durability of Bromide Incorporated Perovskite Solar Cells via Modified Vapor-Assisted Solution Process
F Ansari, M Salavati-Niasari, P Nazari, N Mir, V Ahmadi, ...
ACS Applied Energy Materials
2018 Bulk heterojunction polymer solar cell and perovskite solar cell: Concepts, materials, current status, and opto-electronic properties
FA Roghabadi, N Ahmadi, V Ahmadi, A Di Carlo, KO Aghmiuni, ...
Solar Energy 173, 407-424
2018 Electro-Plasmonic Gas Sensing Based on Reduced Graphene Oxide/Ag Nanoparticle Heterostructure
SK Fard, S Darbari, V Ahmadi
IEEE Sensors Journal 18 (14), 5770-5777
2018 Improving the performance of perovskite solar cells using kesterite mesostructure and plasmonic network
E Ghahremanirad, S Olyaee, BA Nejand, P Nazari, V Ahmadi, K Abedi
Solar Energy 169, 498-504
2018 Controlling DNA translocation speed through graphene nanopore via plasmonic fields
B Fotouhi, V Ahmadi, M Abasifard
Scientia Iranica 25 (3), 1849-1856
2018 Backward Second Harmonic Generation in Silicon Waveguide
B Janjan, D Fathi, V Ahmadi, M Miri
Electrical Engineering (ICEE), Iranian Conference on, 196-199
2018 Hexagonal Array of Mesoscopic HTM‐Based Perovskite Solar Cell with Embedded Plasmonic Nanoparticles
E Ghahremanirad, S Olyaee, BA Nejand, V Ahmadi, K Abedi
physica status solidi (b) 255 (3), 1700291
2018 Picosecond and femtosecond asymmetric switching using a semiconductor optical amplifier-based Mach–Zehnder interferometer
Y Khorrami, V Ahmadi, M Razaghi, N Das
Applied Optics 57 (7), 1634-1639
2018 Multilayer graphene based optical bistability
M Sadeghi, V Ahmadi
JOSA B 35 (3), 528-532
2018 Efficiency enhancement of perovskite solar cells using structural and morphological improvement of CH3NH3PbI3 absorber layers
M Alidaei, M Izadifard, ME Ghazi, V Ahmadi
Materials Research Express 5 (1), 016412
2018 Novel nanostructured electron transport compact layer for efficient and large-area perovskite solar cells using acidic treatment of titanium layer
F Ansari, P Nazari, M Payandeh, FM Asl, B Abdollahi-Nejand, V Ahmadi, ...
Nanotechnology 29 (7), 075404
2017 Schottky graphene/Si photodetector based on metal-dielectric hybrid hollow-core photonic crystal fibers
M Hosseinifar, V Ahmadi, M Ebnali-Heidari
Optics Letters 42 (24), 5066-5069
2017 A biosensor based on plasmonic wave excitation with diffractive grating structure
V Faramarzi, V Ahmadi, F Ghane Golmohamadi, B Fotouhi
Scientia Iranica 24 (6), 3441-3447
2017 Physicochemical Interface Engineering of CuI/Cu as Advanced Potential Hole-Transporting Materials/Metal Contact Couples in Hysteresis-Free Ultralow-Cost and Large-Area …
P Nazari, F Ansari, B Abdollahi Nejand, V Ahmadi, M Payandeh, ...
The Journal of Physical Chemistry C 121 (40), 21935-21944
2017 Formulation of atomic positions and carbon–carbon bond length in armchair graphene nanoribbons: an ab initio study
M Balarastaghi, V Ahmadi
Journal of Theoretical and Applied Physics 11 (3), 191-199
2017 Large grain γ-CuI thin film growth on a copper foil as a hole transport material by an easy and facile method
S Gharibzadeh, A Moshaii, BA Nejand, V Ahmadi
Materials Letters 202, 154-157
2017 Design and optimization of high-performance slot-microring Si-photodetector based on internal photoemission effect
M Hosseinifar, V Ahmadi, M Ebnali-Heidari
Optics Communications 397, 10-16
2017 Organic-Inorganic Halide Perovskite Formation: In Situ Dissociation of Cation Halide and Metal Halide Complexes during Crystal Formation
FA Roghabadi, V Ahmadi, KO Aghmiuni
JOURNAL OF PHYSICAL CHEMISTRY C 121 (25), 13532-13538
2017 Organic–Inorganic Halide Perovskite Formation: In Situ Dissociation of Cation Halide and Metal Halide Complexes during Crystal Formation
F Arabpour Roghabadi, V Ahmadi, K Oniy Aghmiuni
The Journal of Physical Chemistry C 121 (25), 13532-13538
2017 Petahertz-frequency plasmons in graphene nanopore and their application to nanoparticle sensing
B Fotouhi, V Ahmadi, M Abasifard, V Faramarzi
Scientia Iranica 24 (3), 1669-1677
2017 All-optical tunable delay line based on nonlinearities in a chalcogenide microfiber coil resonator
A Kowsari, V Ahmadi, G Darvish, MK Moravvej-Farshi
JOSA B 34 (6), 1199-1205
2017 Metal-coated silicon nanowire embedded plasmonic photonic crystal fiber: Kerr nonlinearity and two-photon absorption
M Sadeghi, V Ahmadi, M Ebnali-Heidari
Plasmonics 12 (3), 819-827
2017 7 µm-long all-optical 1×2 switch utilizing Si/VO2 hybrid waveguide
B Janjan, V Ahmadi, D Fathi
Electrical Engineering (ICEE), 2017 Iranian Conference on, 141-144
2017 Tunable sorting of micro-and nano-particles in a microfluidic system using near-field optics
M Ghafari, V Ahmadi, A Mobini
Electrical Engineering (ICEE), 2017 Iranian Conference on, 392-395
2017 Electrically driven CMOS CompatibleVO2-based silicon modulator
B Janjan, V Ahmadi, M Heidari
Electrical Engineering (ICEE), 2017 Iranian Conference on, 137-140
2017 Facile green deposition of nanostructured porous NiO thin film by spray coating
P Nazari, S Gharibzadeh, F Ansari, BA Nejand, M Eskandari, ...
Materials Letters 190, 40-44
2017 Simplified modeling of frequency behavior in photonic crystal vertical cavity surface emitting laser with tunnel injection quantum dot in active region
M Riahinasab, V Ahmadi, E Darabi
Chinese Physics B 26 (2), 024211
2017 Novel Optical Demultiplexer Design Using Oblique Boundary in Hetero Photonic Crystals
S Pahlavan, V Ahmadi
IEEE Photonics Technology Letters 29 (6), 511-514
2017 Numerical calculation of visible light absorption enhancement of CdSe-quantum dot-sensitized TiO2 nanorod periodic array as photoanode
S Kohnehpoushi, M Eskandari, BA Nejand, V Ahmadi
Journal of Physics D: Applied Physics 50 (7), 075102
2017 Enhancing Lifetime and Efficiency of Organic Solar Cell by Applying an In Situ Synthesized Low‐Crystalline ZnO Layer
KOA Farzaneh Arabpour Roghabadi, Vahid Ahmadi, Bahram Abdollahi Nejand
ChemSusChem
2017 Boosting the lifetime and enhancing the efficiency of organic solar cell by applying an in situ synthesized low‐crystalline (amorphous) ZnO layer as a high potential buffer layer
F Arabpour Roghabadi, V Ahmadi, K Oniy Aghmiuni
ChemSusChem
2017 All-inorganic large-area low-cost and durable flexible perovskite solar cells using copper foil as a substrate
BA Nejand, P Nazari, S Gharibzadeh, V Ahmadi, A Moshaii
Chemical Communications 53 (4), 747-750
2017 Structure optimization of P3HT: CdSe hybrid solar cell using optical analysis and electrochemical impedance spectroscopy
FA Roghabadi, M Kokabi, V Ahmadi, G Abaeiani
Thin Solid Films 621, 19-25
2016 Microscopic analysis of gain spectrum of surface plasmons in graphene
M Karimi, V Ahmadi
Results in Physics 6, 754-760
2016 Numerical calculation of plasmonic field absorption enhancement in CdSe-quantum dot sensitized ZnO nanorods by Ag nanoparticle periodic arrays
S Kohnehpoushi, M Eskandari, BA Nejand, V Ahmadi
Optical Materials 62, 90-94
2016 Quantum dots crosslinking as a new method for improving charge transport of polymer/quantum dots hybrid solar cells and fabricating solvent-resistant film
FA Roghabadi, M Kokabi, V Ahmadi, G Abaeiani
Electrochimica Acta 222, 881-887
2016 Graphene-based side-polished optical fiber amplifier
M Karimi, V Ahmadi, M Ghezelsefloo
Applied Optics 55 (36), 10417-10422
2016 Electro-optical properties of new structure photodetectors based on graphene nanoribbons: an ab initio study
M Balarastaghi, V Ahmadi, G Darvish
JOSA B 33 (11), 2368-2373
2016 Effects of morphology, diameter and periodic distance of the Ag nanoparticle periodic arrays on the enhancement of the plasmonic field absorption in the CdSe quantum dots
S Kohnehpoushi, M Eskandari, V Ahmadi, M Yousefirad, E Nabavi
Photonics and Nanostructures-Fundamentals and Applications 21, 52-59
2016 Novel solvent-free perovskite deposition in fabrication of normal and inverted architectures of perovskite solar cells
BA Nejand, S Gharibzadeh, V Ahmadi, HR Shahverdi
Scientific reports 6 (1), 1-14
2016 Nano-plasmonic-based structures for DNA sequencing
B Fotouhi, V Ahmadi, V Faramarzi
Optics Letters 41 (18), 4229-4232
2016 Design and simulation of a high contrast grating organic VCSEL under electrical pumping
MR Shayesteh, G Darvish, V Ahmadi
Organic Electronics 35, 47-52
2016 Propagation properties and dispersion characteristics of the tapered gap plasmonic waveguides
K Sheikhi, N Granpayeh, V Ahmadi
Journal of Modern Optics 63 (15), 1466-1472
2016 Dynamic analysis of optical microfiber coil resonators
A Kowsari, V Ahmadi, G Darvish, MK Moravvej-Farshi
Applied Optics 55 (24), 6680-6687
2016 Two‐Step Physical Deposition of a Compact CuI Hole‐Transport Layer and the Formation of an Interfacial Species in Perovskite Solar Cells
S Gharibzadeh, BA Nejand, A Moshaii, N Mohammadian, AH Alizadeh, ...
ChemSusChem 9 (15), 1929-1937
2016 Optical and electrical simulation of hybrid solar cell based on conjugated polymer and size-tunable CdSe quantum dots: Influence of the QDs size
FA Roghabadi, KO Aghmiuni, V Ahmadi
Organic Electronics 34, 164-171
2016 Modeling and analysis of distributed feedback quantum dot passively mode-locked lasers
J Rahimi, V Ahmadi, MH Yavari
Applied Optics 55 (19), 5102-5109
2016 Interband π Plasmon of Graphene Nanopores: A Potential Sensing Mechanism for DNA Nucleotides
B Fotouhi, V Ahmadi, M Abasifard, R Roohi
The Journal of Physical Chemistry C 120 (25), 13693-13700
2016 Si-Schottky Photodetector Based on Metal Stripe in Slot-Waveguide Microring Resonator
M Hosseinifar, V Ahmadi, M Ebnali-Heidari
IEEE Photonics Technology Letters 28 (12), 1363-1366
2016 Dark Plasmon-Solitons in Plasmonic Photonic Crystal Fiber Induced by Thermo-Modulational Nonlinearity of Metal
M Sadeghi, V Ahmadi, M Ebnali-Heidari
Plasmonics 11 (3), 895-901
2016 Asymmetric bilayer graphene nanoribbon MOSFETs for analog and digital electronics
A Dinarvand, V Ahmadi, G Darvish
Superlattices and Microstructures 93, 202-213
2016 Nanoparticles size detection method based on surface plasmon polaritons in graphene nanopore
N Amiri, B Fotouhi, V Ahmadi
Electrical Engineering (ICEE), 2016 24th Iranian Conference on, 1066-1069
2016 Design and analysis of enhanced infrared photodetector based on plasmonic antenna with gold back-reflector
F Mohammadghasemi, V Ahmadi, A Mobini
Electrical Engineering (ICEE), 2016 24th Iranian Conference on, 1170-1174
2016 Curvature effects on the electronic and optical properties of single-walled silicon nanotube within tight-binding model
M Heidari, V Ahmadi, S Darbari
Electrical Engineering (ICEE), 2016 24th Iranian Conference on, 1877-1880
2016 Optical properties of terahertz/infrared photodetector based on bilayer graphene nanoribbons with field-effect transistor structure
A Dinarvand, V Ahmadi, G Darvish
JOSA B 33 (5), 891-897
2016 Enhanced Raman amplification by conventional and hybrid photonic crystal based ring structure
A Seyedfaraji, V Ahmadi
Optical and Quantum Electronics 48 (3), 190
2016 Enhanced Thin Solar Cells Using Optical Nano-Antenna Induced Hybrid Plasmonic Travelling-Wave
F Taghian, V Ahmadi, L Yousefi
Journal of Lightwave Technology 34 (4), 1267-1273
2016 New Scalable Cold-Roll Pressing for Post-treatment of Perovskite Microstructure in Perovskite Solar Cells
B Abdollahi Nejand, S Gharibzadeh, V Ahmadi, HR Shahverdi
The Journal of Physical Chemistry C 120 (5), 2520-2528
2016 Cuprous oxide as a potential low‐cost hole‐transport material for stable perovskite solar cells
BA Nejand, V Ahmadi, S Gharibzadeh, HR Shahverdi
ChemSusChem 9 (3), 302-313
2016 Fabrication of a graphene-based pressure sensor by utilising field emission behavior of carbon nanotubes
M Habibi, S Darbari, S Rajabali, V Ahmadi
Carbon 96, 259-267
2016 A systematic approach to photonic crystal based metamaterial design
S Pahlavan, V Ahmadi
INTERNATIONAL JOURNAL OF OPTICS AND PHOTONICS (IJOP) 10 (1), 55-64
2016 High coverage solution-processed planar perovskite solar cell grown based on the Stranski–Krastanov mechanism at low temperature and short time
FA Roghabadi, V Ahmadi, KO Aghmiuni
RSC Advances 6 (113), 112677-112685
2016 Zinc oxide/copper sulfide nanorods as a highly catalytic counter electrode material for quantum dot sensitized solar cells
M Eskandari, R Ghahary, M Shokri, V Ahmadi
RSC Advances 6 (57), 51894-51899
2015 Performance Improvement of P3HT: CdSe Hybrid Solar Cell by Modifying Hole Injection Layer
KO Aghmiyoni, V Ahmadi, FA Roghabadi
Procedia Materials Science 11, 639-643
2015 A low-threshold high-index-contrast grating (HCG)-based organic VCSEL
MR Shayesteh, G Darvish, V Ahmadi
Optics & Laser Technology 75, 173-176
2015 Realization of a Localized Surface Plasmon Resonance Gas Sensor, Based on Ag nanoparticles
S Darbari, V Ahmadi
The Modares Journal of Electrical Engineering 15 (3), 32-34
2015 Design and analysis of a tunable liquid crystal switch/filter with metallic nano-slits
F Alihosseini, V Ahmadi, A Mir
Liquid Crystals 42 (11), 1638-1642
2015 Spectral Red-Shift and Pulse Splitting in Nonlinear Dielectric-Loaded Plasmonic Waveguide
Z Adelpour, A Ghorbani, V Ahmadi
Plasmonics 10 (5), 1231-1238
2015 New Physical Deposition Approach for Low Cost Inorganic Hole Transport Layer in Normal Architecture of Durable Perovskite Solar Cells
B Abdollahi Nejand, V Ahmadi, HR Shahverdi
ACS Applied Materials & Interfaces 7 (39), 21807-21818
2015 Treatment Effects of ZnO and Al: ZnO Photoanodes on Short-Circuit Photocurrent and Open-Circuit Photovoltage of Quantum Dot Sensitized Solar Cell Using Ag Nanoparticles
M Eskandari, V Ahmadi
Electrochimica Acta 165, 239-246
2015 Aluminum nanoparticles surface plasmon: A sensor for DNA translocation detection
B Fotouhi, V Ahmadi, M Abbasifard, R Roohi
Electrical Engineering (ICEE), 2015 23rd Iranian Conference on, 1172-1174
2015 vorheriger Artikel Performance analysis of graphene based surface... nächster Artikel Comparison of passively Q-switched laser perfor...
M Zavvari, V Ahmadi, A Mir
Optical and Quantum Electronics 1 (2015)
2015 Optical and transport characteristics of Raman injection laser with enhanced Stokes emission
HR Yousefvand, V Ahmadi
JOSA B 32 (5), 861-867
2015 Plasmon enhanced CdS-quantum dot sensitized solar cell using ZnO nanorods array deposited with Ag nanoparticles as photoanode
M Eskandari, V Ahmadi, S Kohnehpoushi
Physica E: Low-dimensional Systems and Nanostructures 68, 202-209
2015 Lossless propagation in metal-semiconductor-metal plasmonic waveguides using quantum dot active medium
K Sheikhi, N Granpayeh, V Ahmadi, S Pahlavan
Applied Optics 54 (10), 2790-2797
2015 Enhanced photovoltaic performance of a cadmium sulfide/cadmium selenide-sensitized solar cell using an aluminum-doped zinc oxide electrode
M Eskandari, V Ahmadi, R Ghahary
Ceramics International 41 (2), 2373-2380
2015 Copper selenide as a new counter electrode for zinc oxide nanorod based quantum dot solar cells
M Eskandari, V Ahmadi
Materials Letters 142, 308-311
2015 Improvement of ZnO nanorod based quantum Dot (cadmium sulfide) sensitized solar cell efficiency by aluminum doping
M Eskandari, V Ahmadi, S Kohnehpoushi
Physica E: Low-dimensional Systems and Nanostructures 66, 275-282
2015 Modeling of Semiconductor Quantum Dot Passively Mode Locked Laser for optical communication application
M Yavari, V Ahmadi
بيست و يکمين کنفرانس اپتيک و فوتونيک
2015 Enhanced second order nonlinearity using plasmonic resonance of nano-scale metallic cut-wires
RA Sabet, H Khoshsima, A Namdar, V Ahmadi
The European Physical Journal Applied Physics 69 (2), 20503
2015 A 2-dimensional optical architecture for solving Hamiltonian path problem based on micro ring resonators
N Shakeri, S Jalili, V Ahmadi, A Rasoulzadeh Zali, S Goliaei
Optics & Laser Technology 65, 56-65
2015 Retrieval of the effective quadratic and cubic susceptibilities in metamaterials
RA Sabet, H Khoshsima, A Namdar, V Ahmadi
Journal of Modern Optics 62 (1), 11-15
2015 Electronic and optical properties of single-walled silicon nanotubes: the sp3 tight-binding model
SD Mohsen Heidari, Vahid Ahmadi
The Modares Journal of Electrical Engineering 15 (3), 27-31
2015 Realization of a Localized Surface Plasmon Resonance Gas Sensor, Based on Ag nanoparticles
VA Sara Darbari
The Modares Journal of Electrical Engineering 15 (3), 32-34
2015 High performance avalanche quantum dot photodetector for mid-infrared detection
AM M Zavvari, V Ahmadi
Optical and Quantum Electronics 45 (5), 1207-1217
2015 Effect of Annealing Temperature on Structural Properties of Nanostructured TiN-3DG Composite Synthesized by Chemical Method
F Dabir, R Sarraf-Mamoory, N Riahi-Noori, V Ahmadi
JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES 4 (1), 13-19
2015 Copper sulfide/Lead sulfide as a Highly Catalytic Counter Electrode for Zinc Oxide Nanorod Based Quantum Dot Solar Cells
M Eskandari, V Ahmadi, R Ghahary
Electrochimica Acta 151, 393-398
2015 Modeling the Effect of Different Dimensions in High Contrast Grating Mirror
M Aghaeipour, V Ahmadi, V Qaradaghi
Nano-Structures for Optics and Photonics, 517-519
2014 Improved performance of CdS/CdSe quantum dots sensitized solar cell by incorporation of ZnO nanoparticles/reduced graphene oxide nanocomposite as photoelectrode
FS Ghoreishi, V Ahmadi, M Samadpour
Journal of Power Sources 271, 195-202
2014 Reduced graphene oxide/ZnO hybrid structure for high-performance photodetection
S Darbari, V Ahmadi, P Afzali, Y Abdi, M Feda
Journal of nanoparticle research 16 (12), 1-9
2014 STABILITY OF BULK HETEROJUNCTION SOLAR CELLS BASED ON P3HT/PCBM AND P3HT/CDSE
RF ARABPOUR, M KOKABI, V AHMADI, G ABAEIANI
I11th NTERNATIONAL SEMINAR ON POLYMER SCIENCE AND TECHNOLOGY Type of Seminar …
2014 Growth of plate like γ-CuI nanostructure on copper substrate by hydrothermal evaporation of solution
BA Nejand, V Ahmadi, HR Shahverdi
Materials Letters 132, 138-140
2014 PLASMONIC BEHAVIOR OF BOWTIE PLASMONIC NANO-STRUCTURES
F TAGHIAN, R YOUSEFI, V AHMADI
11th IRANIAN BIENNIAL ELECTROCHEMISTRY SEMINAR
2014 Avalanche quantum dot-in-well long wavelength infrared photodetectors: Linear and Geiger mode operation
M Zavvari, V Ahmadi
Infrared Physics & Technology 65, 72-76
2014 Amplification of surface plasmon polaritons in nonlinear medium with full saturation susceptibility model
Z Adelpour, A Ghorbani, V Ahmadi
JOSA B 31 (7), 1672-1675
2014 Design and Analysis of Multicolor QDIP Based on Metallic Nanoslits Array
A Mobini, V Ahmadi
Photonics Technology Letters, IEEE 26 (12), 1231-1234
2014 Tb/s all-optical nonlinear switching using SOA based Mach-Zehnder interferometer
Y Khorrami, V Ahmadi, M Razaghi
SCIENTIA IRANICA 21 (3), 843-852
2014 A circuit modeling of SAGCM avalanche photodiode with additional layer and nonuniform electric field profile
A Ghadimi, V Ahmadi, F Shahshahani
Journal of Modern Optics 61 (9), 734-745
2014 Effects of air hole numbers around nanocavity in photonic crystal quantum dot lasers
M Banihashemi, V Ahmadi
Electrical Engineering (ICEE), 2014 22nd Iranian Conference on, 181-184
2014 Core shell plasmonic nano-antennas for absorption enhancement in thin-film solar cells
F Taghian, V Ahmadi, L Yousefi
Electrical Engineering (ICEE), 2014 22nd Iranian Conference on, 1507-1510
2014 Dynamic characteristics of photonic crystal quantum dot lasers
M Banihashemi, V Ahmadi
Applied Optics 53 (12), 2595-2601
2014 Self quenched quantum dot avalanche photodetector for mid-infrared single photon detection
M Zavvari, V Ahmadi
Infrared Physics & Technology 62, 7-12
2014 High sensitivity evanescent-field gas sensor based on modified photonic crystal fiber for gas condensate and air pollution monitoring
S Olyaee, A Naraghi, V Ahmadi
Optik-International Journal for Light and Electron Optics 125 (1), 596-600
2014 Numerical Analysis of Enhanced Photodetector in Terahertz Spectrum
F Alihosseini, V Ahmadi, A Mir
The Second Iranian Conference on Engineering Electromagnetics (ICEEM 2014 …
2014 Plasmonic enhanced light absorption of ZnO nanolayer based Quantum Dot Sensitized Solar Cells
S Kohnepoushi, M Yousefirad, V Ahmadi, E Nabavi
 
2013 Far off-resonant coupling between photonic crystal microcavity and single quantum dot with resonant excitation
M Banihashemi, T Nakamura, T Kojima, K Kojima, S Noda, V Ahmadi
Applied Physics Letters 103 (25), 251113
2013 vorheriger Artikel Use of copper-coated fiber as a tunable optical... nächster Artikel Resonant cavity enhanced quantum ring photodete...
A Seyedfaraji, V Ahmadi
Optical and Quantum Electronics 1 (2013)
2013 Synthesis and Characterization of Graphene-ZnO Nanocomposite and its Application in Photovoltaic Cells
FS Ghoreishi, V Ahmadi, M Samadpour
Journal of NanoStructures 3 (4), 453-459
2013 Nanoscale All-Angle Waveguide Based on Plasmon Band Effect in Triangular Array of MWCNTs
A Mobini, V Ahmadi
Journal of Lightwave Technology 31 (23), 3859-3864
2013 Improvement of Raman amplifier bandwidth by means of slow light in photonic crystal based waveguide structure
A Seyedfaraji, V Ahmadi
Optical and Quantum Electronics 45 (12), 1237-1248
2013 Quantum dot infrared photodetector with gated-mode design for mid-IR single photon detection
M Zavvari, V Ahmadi
Applied optics 52 (32), 7675-7681
2013 Modeling and Analysis of Co and Counter Propagation of Picosecond Pulses in QD-SOA
S Pahlavan, V Ahmadi
Quantum Electronics, IEEE Journal of 49 (11), 982-989
2013 Optical self-switching based on a semiconductor-optical-amplifier-assisted Sagnac interferometer
M Jamali, V Ahmadi, M Razaghi
JOSA B 30 (10), 2576-2583
2013 Optical self-switching based on a semiconductor-optical-amplifier-assisted Sagnac interferometer
M Jamali, V Ahmadi, M Razaghi
JOSA B 30 (10), 2576-2583
2013 Photocatalytic reduction of GO/ZnO to achieve GNRs for optoelectronic applications
S Darbari, V Ahmadi, P Afzali, Y Abdi
Journal of Physics D: Applied Physics 46 (38), 385101
2013 New design of ring-based Raman amplifier using optofluidic materials
A Seyedfaraji, V Ahmadi
Optical Engineering 52 (9), 097103-097103
2013 All-optical tunable photonic crystal nor gate based on the nonlinear Kerr effect in a silicon nanocavity
S Afzal, V Ahmadi, M Ebnali-Heidari
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS 30 (9), 2535-2539
2013 Gain and phase recovery dynamics in quantum-dot vertical-cavity semiconductor optical amplifiers
F Keshavarz, V Ahmadi
Selected Topics in Quantum Electronics, IEEE Journal of 19 (5), 1-7
2013 Temporal and Spectral Analysis for Mid-Infrared Four-Wave Mixing in Quantum Intersubband Structure
B Hekmat, V Ahmadi, E Darabi
Modern Physics Letters B 27 (21), 1350149
2013 Design and Analysis of Ultrafast and Tunable All Optical Metamaterial Switch Enhanced by Metal Nanocomposite
M Hajizadegan, V Ahmadi, M Sakhdari
Journal of Lightwave Technology 31 (12), 1877-1883
2013 Quantum-Dot-Based Mid-IR Single-Photon Detector With Self-Quenching and Self-Recovering Operation
M Zavvari, V Ahmadi
Electron Device Letters, IEEE 34 (6), 783-785
2013 SAGCM avalanche photodiode with additional layer and nonuniform electric field
A Ghadimi, V Ahmadi, F Shahshahani
Frontiers of Optoelectronics 6 (2), 199-209
2013 Fast switching and high contrast electrochromic device based on PEDOT nanotube grown on ZnO nanowires
M Kateb, V Ahmadi, M Mohseni
Solar Energy Materials and Solar Cells 112, 57-64
2013 Plamonic behavior of metallic and core-shell nanostructures
F Taghian, MY Rad, V Ahmadi
Electrical Engineering (ICEE), 2013 21st Iranian Conference on, 1-4
2013 Design and analysis of quantum ring photodetector enhanced by metallic slits
F Alihosseini, V Ahmadi, A Mir
Electrical Engineering (ICEE), 2013 21st Iranian Conference on, 1-4
2013 Stable high optical power in quantum well lasers with profiled reflection and tapered structures
A Seyedfaraji, V Ahmadi, M Noshiravani
Optical and Quantum Electronics 45 (5), 401-410
2013 Widely tunable micro electromechanical systems (MEMS)-vertical-cavity surface-emitting lasers with single transverse mode operation
MH Seyed, A Vahid, D Elham
International Journal of Physical Sciences 8 (16), 699-706
2013 Enhanced four-wave mixing in quantum cascade semiconductor optical amplifier
B Hekmat, V Ahmadi, E Darabi
Applied Optics 52 (12), 2828-2833
2013 Characterization of one-dimensional lasing in semiconductor disordered nanopowders
P Rafiee, G Haghighat, V Ahmadi
Applied Optics 52 (4), 659-665
2013 The effects of carrier dependant nonlinear gain on quantum well VCSEL characteristics
M Aghaeipour, V Ahmadi, E Darabi
Optical and Quantum Electronics 45 (2), 115-126
2013 Photocatalytic reduction of GO
YA S DARBARI, V AHMADI, P AFZALI
Journal of physics. D, Applied physics 46 (38), 385101.1-385101.8
2013 All-optical bistable switching based on photonic crystal slab nanocavity using nonlinear Kerr effect
H Pezeshki, V Ahmadi
Journal of Modern Optics 60 (2), 103-108
2012 Dynamics of avalanche quantum dot infrared photodetectors
M Zavvari, V Ahmadi
Modern Physics Letters B 26 (32), 1250216
2012 Resonant cavity enhanced quantum ring terahertz photodetector
F Alihosseini, V Ahmadi, A Mir
Millimeter-Wave and Terahertz Technologies (MMWaTT), 2012 Second Conference …
2012 Design of a kerr effect based terahertz all-optical switch using metallic nanocomposite metamaterial structure
M Hajizadegan, M Sakhdari, V Ahmadi
Millimeter-Wave and Terahertz Technologies (MMWaTT), 2012 Second Conference …
2012 2012 Index IEEE Electron Device Letters Vol. 33
G Abaeiani, M Abe, Y Abe, P Abshire, T Adam, R Adari, C Adelmann, ...
IEEE ELECTRON DEVICE LETTERS 33 (12), 1777
2012 Dynamics and Frequency Response of Microring-Based Optical Modulator Considering Nonlinear Effects
F Mohammadi, V Ahmadi, M Gandomkar
Lightwave Technology, Journal of 30 (23), 3720-3726
2012 Nanoscale effects on multichannel add/drop filter based on 2-D photonic crystal ring-resonator heterostructure
H Pezeshki, V Ahmadi
Journal of Theoretical and Applied Physics 6 (1), 1-6
2012 Switching characteristics of SOA-based Sagnac interferometer for subpicosecond pulses
M Jamali, V Ahmadi, M Razaghi
Telecommunications (IST), 2012 Sixth International Symposium on, 728-732
2012 Enhanced Raman amplification by hybrid photonic crystal based ring structure
A Seyedfaraji, V Ahmadi
Telecommunications (IST), 2012 Sixth International Symposium on, 506-509
2012 Nondegenerate four-wave mixing in Mid-IR quantum cascade semiconductor optical amplifier
B Hekmat, V Ahmadi
Telecommunications (IST), 2012 Sixth International Symposium on, 525-528
2012 Design and analysis of a terahertz resonant tunneling quantum ring in a well photodetector
F Alihosseini, V Ahmadi, A Mir
Telecommunications (IST), 2012 Sixth International Symposium on, 48-51
2012 Design of Organic Vertical-Cavity Surface-Emitting Laser for Electrical Pumping
V Qaradaghi, V Ahmadi, G Abaeiani
Electron Device Letters, IEEE 33 (11), 1616-1618
2012 Analysis of strained double-lightly doped MOSCNT using NEGF
MR Aziziyan, N Moghadam, D Fathi, V Ahmadi
Applied Physics A 109 (2), 481-488
2012 Design of High Sensitive Pressure and Temperature Sensor Using Photonic Crystal Fiber for Downhole Application
S Padidar, V Ahmadi, M Ebnali-Heidari
Photonics Journal, IEEE 4 (5), 1590-1599
2012 High-speed pattern effect free cross-gain modulation in QD-VCSOA
F Keshavarz, V Ahmadi
Lightwave Technology, Journal of 30 (18), 3043-3049
2012 Self-switching using SOA-assisted Sagnac interferometer
V Ahmadi, M Jamali, M Razaghi
Numerical Simulation of Optoelectronic Devices (NUSOD), 2012 12th …
2012 Wavelength-Selective Optical Amplifier Based on Microfiber Coil Resonators
M Arjmand, V Ahmadi, M Karimi
Lightwave Technology, Journal of 30 (16), 2596-2602
2012 Enhanced Raman amplification by photonic crystal based waveguide structure
A Seifaraji, V Ahmadi
Transparent Optical Networks (ICTON), 2012 14th International Conference on, 1-4
2012 Picosecond wavelength conversion using semiconductor optical amplifier integrated with microring resonator notch filter
M Razaghi, M Gandomkar, V Ahmadi, NK Das, MJ Connelly
Optical and Quantum Electronics 44 (3-5), 255-263
2012 Threshold analysis of vertical-cavity surface-emitting laser with internal photonic crystal waveguide
G Haghighat, V Ahmadi
IEEE Conference Symposium on Photonics and Optoelectronics (SOPO, 2012), 1-2
2012 Tb/s all-optical nonlinear switching using semiconductor optical amplifier based Mach-Zehnder interferometer
Y Khorrami, V Ahmadi, M Razaghi
Electrical Engineering (ICEE), 2012 20th Iranian Conference on, 118-123
2012 Analysis of low threshold organic vertical cavity surface emitting laser under optical excitation
V Qaradaghi, V Ahmadi, G Abaeiani
Electrical Engineering (ICEE), 2012 20th Iranian Conference on, 140-144
2012 Quantum dot infrared photodetector enhanced by avalanche multiplication
M Zavvari, V Ahmadi, A Mir, E Darabi
Electronics letters 48 (10), 589-591
2012 Improved performance of complex gain-coupled DFB laser by using tapered grating structure
M Aliannezhadi, F Shahshahani, V Ahmadi
Optical and Quantum Electronics 44 (1), 1-16
2012 Design and optimization of high-performance microring-based uni-traveling carrier photodiode for WDM optical systems
M Hosseinifar, V Ahmadi, G Abaeiani
Optics Communications 285 (8), 2081-2084
2012 Design and optimization of high-performance microring-based uni-traveling carrier photodiode for WDM optical systems
M Hosseinifar, V Ahmadi, G Abaeiani
Optics Communications 285 (8), 2081-2084
2012 Error performance of terrestrial free space optical links with subcarrier time diversity
WO Popoola, Z Ghassemlooy, H Haas, E Leitgeb, V Ahmadi
Communications, IET 6 (5), 499-506
2012 Fast switchable and high contrast electrochromic device based on ZnO-PEDOT core-shell nanowires
M Kateb, V Ahmadi, M Mohseni
4th International Conference on Nanostructures (ICNS4)
2012 A quantum model for light emission performance of carbon nanotube field effect transistor
MR Aziziyan, V Ahmadi, N Moghadam
Applied Physics Letters 100 (5), 051113
2012 Intersubband Absorption in Quantum Ring Based Photodetectors
ED M. Zavvari, V. Ahmadi
18th Iranian Conference on Optics and Photonics, 354-357
2012 The Effect of magnesium doping concentration on morphology and optical property of ZnO nanorods
M Eskandari, V Ahmadi
Proceedings of the 4th International Conference on Nanostructures (ICNS4 …
2012 Nanostructured TiO2 thin film on PTFE by magnetron sputtering at low temperature
BA Nejand, S Hamzeh, MF Hesari, V Ahmadi
Proceedings of 4th International Conference on Nanostructures (ICNS4), 50-52
2012 Nanostructured phothocatalytic TiO 2 thin film fabricated by magnetron sputtering on glass
B Abdollahi Nejand, S Sanjabi, V Ahmadi
International Journal of Modern Physics: Conference Series 5, 661-669
2012 Design and Analysis of New Structure for High-Performance Low-Index Defect-Based Photonic Lattice VCSEL
YM Monfared, V Ahmadi
Lightwave Technology, Journal of 30 (1), 103-109
2012 Compact all-optical switch for WDM networks based on Raman effect in silicon nanowavegide
S Abaslou, V Ahmadi
Optics Letters 37 (1), 40-42
2011 2011 Index Journal of Lightwave Technology Vol. 29
G Abaeiani, M Abarkan, S Abdul-Majid, D Abeysinghe, P Abolghasem, ...
JOURNAL OF LIGHTWAVE TECHNOLOGY 29 (24), 3849
2011 Analysis of SHB and thermal characteristics in PC-VCSEL considering photonic crystal parameters
G Haghighat, V Ahmadi, S Pahlavan
Proceedings of SPIE 8308, 83082G
2011 Sputter deposition of high transparent TiO 2− x N x/TiO 2/ZnO layers on glass for development of photocatalytic self-cleaning application
BA Nejand, S Sanjabi, V Ahmadi
Applied Surface Science 257 (24), 10434-10442
2011 Thermo-optical switching enhanced with second harmonic generation in microring resonators
M Gandomkar, V Ahmadi
Optics Letters 36 (19), 3825-3827
2011 Numerical analysis of wavelength conversion based on semiconductor optical amplifier integrated with microring resonator notch filter
M Razaghi, M Gandomkar, V Ahmadi, N Das, MJ Connelly
Numerical Simulation of Optoelectronic Devices (NUSOD), 2011 11th …
2011 Effects of Carrier Relaxation and Homogeneous Broadening on Dynamic and Modulation Behavior of Self-Assembled Quantum-Dot Laser
MH Yavari, V Ahmadi
Selected Topics in Quantum Electronics, IEEE Journal of 17 (5), 1153-1157
2011 Analysis of QD VCSEL Dynamic Characteristics Considering Homogeneous and Inhomogeneous Broadening
H Abbaspour, V Ahmadi, MH Yavari
Selected Topics in Quantum Electronics, IEEE Journal of 17 (5), 1327-1333
2011 Thermal analysis of second harmonic generation in microring resonators
V Ahmadi, M Gandomkar
Transparent Optical Networks (ICTON), 2011 13th International Conference on, 1-4
2011 Analysis of different hot carrier effects on self-assembled InAs/GaAs QDIP dynamic response using circuit model
A Mir, V Ahmadi
Electrical Engineering (ICEE), 2011 19th Iranian Conference on, 1-4
2011 Enhanced bandwidth-efficiency product of uni-traveling carrier photodiodes using microring-based structures
M Hosseinifar, V Ahmadi, G Abaeiani
Electrical Engineering (ICEE), 2011 19th Iranian Conference on, 1-4
2011 Design and analysis of a quantum dot infrared photodetector for low BER free space optical communication
A Mir, V Ahmadi
Electrical Engineering (ICEE), 2011 19th Iranian Conference on, 1-5
2011 Input pump pulse energy optimisation to maximise four-wave mixing conversion efficiency in semiconductor optical amplifier
SR Hosseini, M Razaghi, NK Das, V Ahmadi
Electrical Engineering (ICEE), 2011 19th Iranian Conference on, 1-4
2011 Design and analysis of enhanced second harmonic generation in AlGaAs/AlO< sub> x microring waveguide
M Gandomkar, V Ahmadi
Optics Express 19 (10), 9408-9418
2011 Microring-Based Unitraveling Carrier Photodiodes for High Bandwidth-Efficiency Product Photodetection in Optical Communication
M Hosseinifar, V Ahmadi, G Abaeiani
Journal of Lightwave Technology 29 (9), 1285-1292
2011 Nonlinear response of high efficient in-plane channel drop filter in Si heterostructure photonic crystal slab
M Banihashemi, V Ahmadi
Journal of Modern Optics 58 (7), 587-592
2011 Two photon absorption effect on nonlinear SOA-MZI switching
Y Khorrami, V Ahmadi, M Razaghi
17th Iranian Conference on Optics and Photonics, Kerman
2011 Growth and investigation of antifungal properties of ZnO nanorod arrays on the glass
M Eskandari, N Haghighi, V Ahmadi, F Haghighi, SH Mohammadi
Physica B: Condensed Matter 406 (1), 112-114
2010 Static and Dynamic Response Analysis of Raman Injection Quantum Cascade Laser Using Circuit Level Modeling
HR Yousefvand, V Ahmadi, K Saghafi
Lightwave Technology, Journal of 28 (21), 3142-3148
2010 The effect of sputtering gas pressure on structure and photocatalytic properties of nanostructured titanium oxide self-cleaning thin film
BA Nejand, S Sanjabi, V Ahmadi
Vacuum 85 (3), 400-405
2010 Free-space optical communication employing polarization shift keying coherent modulation in atmospheric turbulence channel
X Tang, Z Ghassemlooy, S Rajbhandari, WO Popoola, CG Lee, E Leitgeb, ...
Communication Systems Networks and Digital Signal Processing (CSNDSP), 2010 …
2010 Terrestrial free-space optical links with temporal diversity
WO Popoola, Z Ghassemlooy, E Leitgeb, V Ahmadi
Communication Systems Networks and Digital Signal Processing (CSNDSP), 2010 …
2010 Enhanced Raman amplification by hybrid photonic crystals
A Seyedfaraji, V Ahmadi
Transparent Optical Networks (ICTON), 2010 12th International Conference on, 1-4
2010 Analysis of Random Lasers Threshold in ZnO Nanoparticle Based Cavity
P Rafiee, V Ahmadi, M Hayati, MH Bitarafan, H Zartabi
Photonics and Optoelectronic (SOPO), 2010 Symposium on, 1-4
2010 Dependence of coupling coefficient and lasing wavelength on injection current in pure gain-coupled distributed feedback semiconductor lasers
M Aliannezhadi, F Shahshahani, V Ahmadi
Journal of Modern Optics 57 (10), 859-865
2010 Growth of Al-doped ZnO nanorod arrays on the substrate at low temperature
M Eskandari, V Ahmadi, SH Ahmadi
Physica E: Low-dimensional Systems and Nanostructures 42 (5), 1683-1686
2010 A modified model of the atmospheric effects on the performance of FSO links employing single and multiple receivers
A Chaman-Motlagh, V Ahmadi, Z Ghassemlooy
Journal of Modern Optics 57 (1), 37-42
2010 Optical and photocatalytic characteristics of nitrogen doped TiO2 thin film deposited by magnetron sputtering
BA Nejand, S Sanjabi, V Ahmadi
Scientia Iranica 17 (2), 102-107
2010 Optimization of electrochemical etching parameters in FIM/STM tungsten nanotip fabrication
G Tahmasebipour, V Ahmadi, A Abdullah
JOURNAL OF SCIENCES ISLAMIC REPUBLIC OF IRAN 21 (1), 75-83
2010 Investigation and analysis of time response in Geiger mode avalanche photodiode
M Dehghan, V Ahmadi, E Darabi
Optica Applicata 40 (2), 471-479
2009 Two-dimensional spectral-spatial analysis of ZNO nanoparticles random lasers
P Rafiee, V Ahmadi, MH Yavari
ICTON Mediterranean Winter Conference, 2009. ICTON-MW 2009. 3rd, 1-4
2009 Modulation characteristics of self-assembled InAs-GaAs quantum dot laser considering phonon bottleneck, carrier relaxation and homogeneous broadening
MH Yavari, V Ahmadi, P Rafiee
ICTON Mediterranean Winter Conference, 2009. ICTON-MW 2009. 3rd, 1-4
2009 Increasing Directional Intensity of Output Light Beam from Photonic Crystal Slab Outlet Including Micro Cavity Resonators
A Mobini, K Saghafi, V Ahmadi
World Academy of Science, Engineering and Technology, International Journal …
2009 Optical analysis of mushroom-type traveling wave electroabsorption modulatorsusing full-vectorial finite difference method
K Abedi, V Ahmadi, MK Moravvej-farshi, M Razaghi
Numerical Simulation of Optoelectronic Devices, 2009. NUSOD 2009. 9th …
2009 Numerical modeling of sub-picosecond counter-propagating pulses in semiconductor optical amplifiers
M Razaghi, V Ahmadi, MJ Connelly, KA Madanifar
Numerical Simulation of Optoelectronic Devices, 2009. NUSOD 2009. 9th …
2009 Design and analysis of a new structure of InAs/GaAs QDIP for 8–12 μm infrared windows with low dark current
A Mir, V Ahmadi
Journal of Modern Optics 56 (15), 1704-1712
2009 Optimization of STM/FIM nanotip aspect ratio based on the Taguchi method
G Tahmasebipour, Y Hojjat, V Ahmadi, A Abdullah
The International Journal of Advanced Manufacturing Technology 44 (1), 80-90
2009 MIMO free-space optical communication employing subcarrier intensity modulation in atmospheric turbulence channels
Z Ghassemlooy, WO Popoola, V Ahmadi, E Leitgeb
International Conference on Communications Infrastructure. Systems and …
2009 Optical and microwave analysis of mushroom-type waveguides for traveling wave electroabsorption modulators based on asymmetric intra-step-barrier coupled double strained …
K Abedi, V Ahmadi, MK Moravvej-Farshi
Optical and quantum electronics 41 (10), 719-733
2009 Comprehensive finite-difference time-dependent beam propagation model of counterpropagating picosecond pulses in a semiconductor optical amplifier
M Razaghi, V Ahmadi, MJ Connelly
Lightwave Technology, Journal of 27 (15), 3162-3174
2009 Ultra-short optical pulse shaping using semiconductor optical amplifier
H Aghajanpour, V Ahmadi, M Razaghi
Optics & Laser Technology 41 (5), 654-658
2009 Low temperature synthesis of ZnO nanorods by using PVP and their characterization
M Eskandari, V Ahmadi, SH Ahmadi
Physica B: Condensed Matter 404 (14-15), 1924-1928
2009 Responsivity analysis of a resonant cavity QDIP at 10 µm wavelength
A Mir-Derikvandi, V Ahmadi
Transparent Optical Networks, 2009. ICTON09. 11th International Conference …
2009 Study of improved second harmonic generation in double microring resonators
M Gandomkar, V Ahmadi
Transparent Optical Networks, 2009. ICTON09. 11th International Conference …
2009 Synthesis and Characterization of ZnO Nanorods and Nanowires Using Pvp as Capping
M Eskandari, V Ahmadi, S Ahmadi
International Journal of Nanoscience 8 (03), 285-287
2009 Fabrication of STM Tungsten Nanotip by Electrochemical Etching Method
G Tahmasebipour, V Ahmadi, A Abdullah, Y Hojjat
International Journal of Nanoscience 8 (03), 305-310
2009 Comprehensive electro-opto-thermal analysis of gain-cavity offset on the performance of gain-guided VCSELs
K Abedi, V Ahmadi, E Sooudi, MR Moeini
WSEAS International Conference. Proceedings. Mathematics and Computers in …
2009 Performance of free space optical communication using M-array receivers at atmospheric condition
AC Motlagh, V Ahmadi, Z Ghassemlooy
17th International Conf. on Electrical Engineering, Tehran, Iran, 12-14
2009 Modeling and operation analysis of a Three-terminal heterojunction bipolar phototransistor
A Ghadimi, A Ahmadpour, A Ahadpour, V Ahmadi
Electrical Engineering/Electronics, Computer, Telecommunications and …
2009 Femtosecond pulse shaping using counter-propagating pulses in a semiconductor optical amplifier
M Razaghi, V Ahmadi, MJ Connelly
Optical and quantum electronics 41 (7), 513-523
2009 Circuit-level implementation of semiconductor self-assembled quantum dot laser
MH Yavari, V Ahmadi
Selected Topics in Quantum Electronics, IEEE Journal of 15 (3), 774-779
2009 Design and numerical analysis of a polarization-insensitive quantum well optoelectronic integrated amplifier-switch
E Darabi, V Ahmadi
Solid-State Electronics 53 (3), 383-388
2009 Effect of fabrication process parameters on the apex‐radius of STM tungsten nanotip
G Tahmasebipour, Y Hojjat, V Ahmadi, A Abdullah
Scanning: The Journal of Scanning Microscopies 31 (2), 65-74
2009 A closed-form analytic model to study the characteristics of avalanche photodiodes
S Masudy-Panah, V Ahmadi
Journal of Modern Optics 56 (1), 49-54
2009 A New Structure Design for Low Dark Current QDIP
A Mir, V Ahmadi, M Gandomkar
17h Iranian Conf. on Electrical Engineering (ICEE2009) Tehran, Iran
2009 ANALYSIS OF THREE SECTION DISTRIBUTED BRAGG REFLECTOR TUNABLE LASER DIODE BASED ON THE TRANSFER MATRIX METHOD
MH YAVARI, V AHMADI, A ZARIFKAR
MODARES TECHNICAL AND ENGINEERING 34 (1), 1
2008 Analysis of Three Section Distributed Bragg Reflector Tunable Laser Diode Based on the Transfer Matrix Method
V Ahmadi, A Zarifkar
The Modares Journal of Electrical Engineering 8 (1), 1-12
2008 The effect of atmospheric turbulence on the performance of the free space optical communications
AC Motlagh, V Ahmadi, Z Ghassemlooy, K Abedi
Communication Systems, Networks and Digital Signal Processing, 2008. CNSDSP …
2008 Full-vectorial finite difference for optical analysis of travelling wave electroabsorption modulators
K Abedi, V Ahmadi, MK Moravvej-farshi, AC Motlagh
Communication Systems, Networks and Digital Signal Processing, 2008. CNSDSP …
2008 The effect of atmospheric turbulence on the performance of the free space optical communications
A Chaman Motlagh, V Ahmadi, Z Ghassemlooy, K Abedi
Institute of Electrical and Electronics Engineers
2008 Analysis of relative intensity noise in tapered grating QWS-DFB laser diodes by using three rate equations model
F Shahshahani, V Ahmadi
Solid-State Electronics 52 (6), 857-862
2008 Temperature variation effect on dynamic characteristics of GaAs avalanche photodiodes
V Ahmadi, S Masudy-Panah
Transparent Optical Networks, 2008. ICTON 2008. 10th Anniversary …
2008 Analysis of carrier and photon dynamic effects on the modulation behaviour of self assembled quantum dot lasers
V Ahmadi, MH Yavari
Transparent Optical Networks, 2008. ICTON 2008. 10th Anniversary …
2008 Microring Waveguade Quantum Dot Infrared Photodetectrors for WDM Optical Interconnection
K Saghafi, GR Abaiyani, V Ahmadi
شانزدهمين كنفرانس مهندسي برق ايران
2008 Raman spectroscopy in aluminum-doped zinc oxide nanorods
M Eskandar, V Ahmadi, S Ahmadi, F Ghorab
Nanoelectronics Conference, 2008. INEC 2008. 2nd IEEE International, 875-877
2008 Analysis of photon density distribution in three section DBR tunable laser diode
MH Yavari, V Ahmadi, A Zarifkar, K Abedi
Second International Conference on Advanced Optoelectronics and Lasers …
2008 Circuit model for segmented traveling-wave electroabsorption modulators
K Abedi, V Ahmadi, MH Sheikhi, S Gholmohammadi, MH Yavari
Second International Conference on Advanced Optoelectronics and Lasers …
2008 Dynamic response of QWS-DFB lasers with convex tapered grating structure and non-zero facet reflection
N Bazhdanzadeh, V Ahmadi, H Ghafoorifard, F Shahshahani
Solid-State Electronics 52 (2), 221-226
2008 Design of a novel periodic asymmetric intra-step-barrier coupled double strained quantum well electroabsorption modulator at 1.55 μm
K Abedi, V Ahmadi, E Darabi, MK Moravvej Farshi, MH Sheikhi
Solid-State Electronics 52 (2), 312-322
2008 Numerical Analysis of Mushroom-type Traveling Wave Electroabsorption Modulators Using Full-Vectorial Finite Difference Method
K Moravvej-Farshi, E Darabi, V Ahmadi, K Abedi
International Journal of Optics and Photonics 2 (1), 9-18
2008 Analysis of photon density distribution in three section DBR tunable laser diode [7009-44]
MH Yavari, V Ahmadi, A Zarifkar, K Abedi
PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING 7009, 7009
2008 Analysis for the characteristics of a voltage tunable functional quantum structure optoelectronic integrated device [7009-36]
E Darabi, V Ahmadi, K Mirabbaszadeh
PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING 7009, 7009
2008 Calculation of the spontaneous emission spatial dependency in semiconductor lasers using transmission line model [7009-09]
M Razaghi, V Ahmadi, BHS Mahalleh, A Zarifkar
PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING 7009, 7009
2008 Circuit model for segmented traveling-wave electroabsorption modulators [7009-32]
K Abedi, V Ahmadi, MH Sheikhi, S Gholmohammadi, MH Yavari
PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING 7009, 7009
2008 Performance of sub-carrier modulated Free-Space Optical communication link in negative exponential atmospheric turbulence environment
WO Popoola, Z Ghassemlooy, V Ahmadi
International Journal of Autonomous and Adaptive Communications Systems 1 (3 …
2007 Microring-Based Resonant Cavity Waveguide Photodetectors for WDM Optical Systems
G Abaeiani, V Ahmadi, K Saghafi
Transparent Optical Networks, 2007. ICTON07. 9th International Conference …
2007 New Asymmetric Quantum Well Traveling-wave Electroabsorption Modulator with Very Low Insertion Loss and High Extinction Ratio
V Ahmadi, K Abedi, E Darabi
Transparent Optical Networks, 2007. ICTON07. 9th International Conference …
2007 DYNAMIC ANALYSIS OF SEMICONDUCTOR LASER AMPLIFIER USING TRANSFER MATRIX METHOD
M RAZAGHI, V AHMADI, A ZARIFKAR
MODARES TECHNICAL AND ENGINEERING
2006 Numerical analysis of void-induced thermal effects on GaAs/AlxGa1-xAs high power single-quantum-well laser diodes
F Gity, V Ahmadi, M Noshiravani
Solid-state electronics 50 (11-12), 1767-1773
2006 A Versatile HSPICE Electro-Opto-Thermal Circuit Model for Vertical-Cavity Surface-Emitting Lasers
E Sooudi, V Ahmadi, M Soroosh
2006 IEEE International Conference on Semiconductor Electronics, 866-870
2006 Numerical Analysis of Filamentation in Conventional Double Heterostructure and Quantum Well High-Power Broad-Area Laser Diodes
A Seyedfaraji, V Ahmadi, M Noshiravani, F Gity
Semiconductor Electronics, 2006. ICSE06. IEEE International Conference on …
2006 Static quasi 3d thermal simulation of ion implanted vertical cavity surface emitting lasers
E Sooudi, V Ahmadi, M Ebnali Heidari, M Soroosh
Semiconductor Electronics, 2006. ICSE06. IEEE International Conference on …
2006 Design and analysis of resonant cavity enhanced-waveguide photodetectors for microwave photonics applications
G Abaeiani, V Ahmadi, K Saghafi
Photonics Technology Letters, IEEE 18 (15), 1597-1599
2006 Analysis for Dynamic Characteristics and Relative Intensity Noise of a New Polarization-Insensitive Quantum Well Structure Optoelectronic Integrated Device
V Ahmadi, E Darabi
Transparent Optical Networks, 2006 International Conference on 2, 151-156
2006 Numerical analysis of an optoelectronic integrated device composed of coupled periodic MQW phototransistor and strained-QW laser diode
E Darabi, V Ahmadi, K Mirabbaszadeh
Solid-state electronics 50 (3), 473-479
2006 Numerical analysis of void-induced thermal effects on GaAs/AlGaAs high power quantum well laser diodes
F Gity, V Ahmadi, M Noshiravani, K Abedi
GCC Conference (GCC), 2006 IEEE, 1-6
2006 Non-physical model of lossy transmission line for circuit simulation of segmented traveling wave electroabsorption modulators
K Abedi, V Ahmadi, MK Moravvej-Farshi, MH Sheikhi, F Gity
GCC Conference (GCC), 2006 IEEE, 1-4
2006 Effects of Compound Semiconductor Material Properties and the Device Structure on the Electron Transport Characteristics in MESFETs (A Monte Carlo Simulation)
K Saghafi, MK Moravvej-Farshi, V Ahmadi
The Modares Journal of Electrical Engineering 5 (1), 11-22
2006 Modeling and Analysis of a Piezo-Optic Microstructure
M Gandomkar, V Ahmadi, M Noshiravani
International Conf. on Bio-Nanotechnology, ICBN2006
2006 Gain calculation of GaAs-Al x Ga 1-x As compressive strained quantum well lasers
E Rahimian Mohammadi, V Ahmadi
The Physical Society of Iran; Tehran; The Annual Physics Conference of Iran …
2005 Calculation of the spontaneous emission spatial dependency in semiconductor laser using transmission line model
M Razaghi, A Zarifkar, B Hadian, S Mahalle, V Ahmadi
Laser and Fiber-Optical Networks Modeling, 2005. Proceedings of LFNM 2005 …
2005 Simulation of photon density distribution in three section tunable DBR laser diode based on the transfer matrix method
MH Yavari, V Ahmadi, A Zarifkar, K Abedi
Advanced Optoelectronics and Lasers, 2005. Proceedings of CAOL 2005. Second …
2005 Soliton solution of nonlinear Schrodinger equation with application to Bose-Einstein condensation using the FD method
K Abedi, V Ahmadi, S Gholmohammadi, E Darabi, MH Yavari
Advanced Optoelectronics and Lasers, 2005. Proceedings of CAOL 2005. Second …
2005 Analysis for the characteristics of a voltage tunable functional quantum structure optoelectronic integrated device
E Darabi, V Ahmadi, K Mirabbaszadeh
Advanced Optoelectronics and Lasers, 2005. Proceedings of CAOL 2005. Second …
2005 Analysis for the characteristics of a voltage tunable functional quantum structure optoelectronic integrated device
E Darabi, V Ahmadi, K Mirabbaszadeh
Advanced Optoelectronics and Lasers, 2005. Proceedings of CAOL 2005. Second …
2005 Numerical analysis of three section distributed Bragg reflector tunable laser diode with modified oscillation condition based on the transfer matrix method
MH Yavari, V Ahmadi, F Shahshahani, M Razaghi
Wireless and Optical Communications Networks, 2005. WOCN 2005. Second IFIP …
2005 Simulation of photon density distribution in three section DBR tunable laser diode based on the transfer matrix method
MH Yavari, V Ahmadi, A Zarifkar, K Abedi
2nd Int. Conf. on Advanced Optoelectronics and Lasers, CAOL
2004 SPICE model for microwave properties of traveling-wave electroabsorption modulators
K Abedi, MH Sheikhi, S Gholmohammadi, V Ahmadi
Semiconductor Electronics, 2004. ICSE 2004. IEEE International Conference on …
2004 Evanescent optical field calculation with FDTD method
S Golmohammadi Hens, K Abedi, V Ahmadi
Semiconductor Electronics, 2004. ICSE 2004. IEEE International Conference on …
2004 A rigorous numerical modeling of exciton electroabsorption in coupled multiple quantum wells modulators
E Darabi, V Ahmadi
Laser and Fiber-Optical Networks Modeling, 2004. Proceedings of LFNM 2004 …
2004 14D2-47
M Razaghi, A Zarifkar, M Soroosh, V Ahmadi
 
2004 The effect of grating structure on relative intensity noise in DFB laser diode
E Mortazy, F Shahshahani, V Ahmadi, A Tehranchi, MK Moravvej-Farshi
Fluctuations and Noise in Photonics and Quantum Optics II 5468, 154-164
2004 The effect of grating structure on relative intensity noise in DFB laser diode
E Mortazy, F Shahshahani, V Ahmadi, AH Tehranchi, MK Moravvej-Farshi
Proc. of SPIE Vol 5468, 155
2003 Study of frequency and time responses of a separated absorption and multiplication region avalanche photodiode;
A Banoushi, V Ahmadi, S Setayeshi
Amir Kabir 14 (53), 122-130
2003 δ-DOPED LDD HMESFET
K SAGHAFI, MK MORAVEJ FARSHI, V Ahmadi
The Modares Journal of Electrical Engineering 3 (1), 99-103
2003 Mode partition, mode hopping and phase noise in a two-mode semiconductor laser
E Mortazy, V Ahmadi, MK Moravvej-Farshi, A Zarifkar
Advanced Optoelectronics and Lasers, 2003. Proceedings of CAOL 2003. First …
2003 Analysis of RIN in DFB semiconductor laser diodes using three rate equations model
V Ahmadi, F Shahshahani, E Mortazy
International Symposium on Telecommunications (IST2003), 16-18
2003 The effect of side modes on noise characteristics in semiconductor lasers: A numerical approach; Analiz-e tasir-e modkenari bar moshakhkhaasehha-ye noiz-e laizer-e nimeh hadi …
A Zarifkar, MK Moravvej-farshi, V Ahmadi
International Journal of Engineering Science (Tehran) 14 (1), 23-42
2003 AN IMPROVED MONTE CARLO METHOD FOR ELECTRON TRANSPORT IN LOW FIELDS FOR DEGENERATE SEMICONDUCTORS
K SAGHAFI, FMK MORAVEJ, V AHMADI
DANESHVAR MEDICINE 10 (43), 1-1
2003 Physical model for the transient response of a voltage‐tunable optoelectronic integrated functional device
MH Sheikhi, V Ahmadi, MK Morravej‐Farshi, T Yao
physica status solidi (c), 961-966
2003 The effect of side modes on noise characteristics in semiconductor lasers: A numerical approach
A Zarifkar, MK Moravvej-farshi, V Ahmadi
International Journal of Engineering Science (Tehran) 14 (1), 23-42
2003 ANALYSIS AND MEASUREMENT OF INTENSITY AND PHASE NOISE IN MULTI-MODE SEMICONDUCTOR LASERS
V AHMADI, E MORTAZI, MK MORAVEJI TAFRESHI, AA ZARIFKAR
AMIRKABIR
2003 Analysis of MPN, MHN and Phase Noise of a Two-Mode Semiconductor Laser
E Mortazy, V Ahmadi, MK Moravvej-Farshi, A Zarifkar
光学学报 23 (z1)
2003 SAGHAFI K., MORAVEJI TAFRESHI MK*, AHMADI V.
K SAGHAFI, MK MORAVEJI TAFRESHI, V AHMADI
MODARES TECHNICAL AND ENGINEERING 13 (99), 10
2003 Circuit Modeling and Measurement of Noise for a Semiconductor Laser Diode
E MORTAZI, V Ahmadi, FMK MORAVEJ
JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TABRIZ)
2002 A physical model for characteristics of an optical amplifier-switch integrated device
MH Sheikhi, V Ahmadi, MK Moravvej-Farshi
Iranian Journal of Science and Technology 26 (B4), 665-672
2002 Concave tapered grating design of DFB laser at high power operation for reduced spatial hole-burning effect
F Shahshahani, V Ahmadi, K Mirabbaszadeh
Materials Science and Engineering B 96 (1), 1-7
2002 An integrated equivalent circuit model for relative intensity noise and frequency noise spectrum of a multimode semiconductor laser
E Mortazy, V Ahmadi, MK Moravvej-Farshi
Quantum Electronics, IEEE Journal of 38 (10), 1366-1371
2002 An analytical approach to study the effect of carrier velocities on the gain and breakdown voltage of avalanche photodiodes
A Banoushi, V Ahmadi, S Setayeshi
Journal of lightwave technology 20 (4), 696
2002 Effect of ridge dimensions on characteristics of ridge waveguide DFB lasers
F Emami, MK Moravvej Farshi, V Ahmadi
International Journal of Engineering Science (Tehran) 13 (3), 21-32
2002 EFFECTS OF FACET PHASES AND REFLECTIVITY ON THE INTERNAL OPTICAL FIELD IN QWS-DFB SEMICONDUCTOR LASERS
F Shahshahani, V Ahmadi, K Mirabbaszadeh
MODARES TECHNICAL AND ENGINEERING 7 (1), 1
2001 Using a neural networks algorithm for high-resolution imaging in pulsed laser radar
M Joodaki, G Kompa, SMG Arshad, V Ahmadi, MK Moravvej-Farshi
International Symposium on Optical Science and Technology, 180-189
2001 Neural Method for Two Dimensional (2D) High Contrast Imaging in Pulsed Laser Radar
M Joodaki, G Kompa, SM Arshad, V Ahmadi, MK Moravvej-Farshi
Microwave Conference, 2001. 31st European, 1-4
2001 Application of Neural Networks for Distance Measurement in Pulsed Laser Radar (PLR)
M Joodaki, G Kompa, SMG Arshad, G Kamucha, V Ahmadi, ...
3rd Topical Meeting on Optoelectronic Distance/Displacement Measurements and …
2001 Design and Analysis of a Broadband Wavelength Polarization Independent Ti: LiNbO3 Directional Coupler
K Bayat, MK Moravvej-Farshi, V Ahmadi, M Zolfaghari, MF Baroughi
ST2001, Tehran, Iran
2001 Numerical analysis for static and dynamic characteristics of an optical amplifier-switch integrated device
V Ahmadi, MH Sheikhi, MK Moravvej-Farshi
Scripta materialia 44 (8-9), 1207-1212
2001 Neural Method for Near Distance Measurements with Overlapping of Reference and Reflected Pulses in Pulsed laser Radar
M Joodaki, G Kompa, SMG Arshad, V Ahmadi, MK Moravej-Farshi
11th Conference on Microwaves, Radio Communication and Electromagnetic …
2001 Numerical analysis of noise in a single-mode semiconductor laser
MK Moravvej-Farshi, A Zarifkar, V Ahmadi
Amir Kabir 12 (48), 437-448
2001 A physical model for characteristics of PIN/QW-LD optoelectronic integrated device
MH Sheikhi, V Ahmadi, MK Moravvej-Farshi
Electrical and Computer Engineering, 2001. Canadian Conference on 1, 177-181 …
2001 NUMERICAL ANALYSIS OF NOISE IN A SINGLE-MODE SEMICONDUCTOR LASER
MK MORAVEJI TAFRESHI, AA ZARIFKAR, V AHMADI
AMIRKABIR
2001 Using neural networks for high resolution distance measurements in pulsed laser radar
M Joodaki, G Kompa, V Ahmadi, MKM Farshi
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001 …
2000 Effect of grating structure on the characteristics of the distributed feedback laser
F Shahshahani, V Ahmadi, K Mirabbaszadeh
 
2000 Numerical analysis for the static and dynamic responses of an HPT/QW-LD optoelectronic integrated device
V Ahmadi, MH Sheikhi, MK Moravvej-Farshi
Microelectronics, 2000. ICM 2000. Proceedings of the 12th International …
2000 Analysis of the optical gain and rise time of a QW-structure optoelectronic integrated device
V Ahmadi, MH Sheikhi, MK Moravvej-Farshi
High Performance Electron Devices for Microwave and Optoelectronic …
1998 Numerical Analysis for the characteristics of a QW-structure optoelectronic integrated Device
V Ahmadi, MH Sheikhi
Semiconductor Electronics, 1998. Proceedings. ICSE98. 1998 IEEE …
1997 Analysis for relative intensity noise of optoelectronic integrated device by heterojunction phototransistor and laser diode
V Ahmadi, S Noda, A Sasaki
Solid-State Electronics 41 (3), 465-471
1997 Numerical analysis for the dynamic response of an HPT/LD optoelectronic integrated device
V Ahmadi, MH Sheikhi
Advanced Materials-97
1995 2-D Simulation and New Structures of Heterojunction Phototransistor for Higher Optical Amplification in Optoelectronic Integrated Devices
V Ahmadi, S Noda, A Sasaki
Optical Review 2 (2), 120-122
1995 Optical multi-stable set-reset functions of optoelectronic integrated device composed of six heterojunction phototransistors over two laser diodes
V Ahmadi, S Noda, K Shibata, A Sasaki
Solid-state electronics 38 (3), 551-556
  Thermal Analysis of Vertical Cavity Surface Emitting Lasers Utilizing MHCG and DBR Composite Reflectors
HH Rostami, V Ahmadi, S Pahlavan
 
  Optical and Photocatalytic Characteristics of Nitrogen Doped TiO2 Thin Film Deposited by Magnetron Sputtering
S Sanjabi, V Ahmadi, B Abdollahi Nejand
Scientia Iranica 17 (2)
  یوبسًو یوز لوًت یسررث یبَرسیل رد یمًتواًک ربشثآ ی
HR Yousefvand, V Ahmadi
 
  Effect of RW length and taper angle on beam quality and threshold current density in high power tapered diode lasers
A Hodaei, V Ahmadi, G Abaeiani
 
  ِبتزه تیطخزیغ مٍد زثَه نیس ًَاً یکیًَوسلاپ دیدشت زثا رد ُدش تیَقت لاط
RA Sabet, H Khoshsima, A Namdar, V Ahmadi
 
  یطخزیغ ُدبهازف ربتخبس رد ُدش تیَقت مٍد کیًَهربّ دیلَت
RA Sabet, H Khoshsima, A Namdar, V Ahmadi
 
  Electronic and optical properties of single-walled silicon nanotubes: the sp3 tight-binding model
M Heidari, V Ahmadi, S Darbari
The Modares Journal of Electrical Engineering 15 (3), 27-31
  Self-Consistent Scattering Model of Quantum Cascade Raman Laser With Improved Design
HR Yousefvand, V Ahmadi
 
  Investigation of reflectivity in HCG-VCSELs
M Aghaeipour, V Ahmadi, V Qaradaghi
 
  SPICE Simulation for Analysis of Traveling-Wave Electroabsorption Modulators
K Abedi, S Gholmohammadi, V Ahmadi
 
  INVESTIGATION OF BIDIRECTIONAL FEMTOSECOND PULSES IN SOAS USING A MODIFIED NONLINEAR SCHORODINGER EQUATION AND IMPROVED FINITE DIFERENCE METHOD
M Razaghi, V Ahmadi, MJ Connelly, KA Madanifar
 
  The Effect of Spatial Hole Burning on Relative Intensity Noise in DFB Laser Diodes
E Mortazy, F Shahshahani, V Ahmadi, AH Tehranchi, MK Moravvej
Australians Conf. on Optics, Lasers and Spectroscopy, ACOLS 3