フォロー
Ehsan Hashemi
Ehsan Hashemi
Optical System Engineer at NIL Technology
確認したメール アドレス: nilt.com
タイトル
引用先
引用先
Triggering of guiding and antiguiding effects in GaN-based VCSELs
E Hashemi, J Bengtsson, J Gustavsson, M Stattin, M Glauser, ...
SPIE OPTO, 90010A-90010A-8, 2014
47*2014
Engineering the lateral optical guiding in gallium nitride-based vertical-cavity surface-emitting laser cavities to reach the lowest threshold gain
E Hashemi, J Gustavsson, J Bengtsson, M Stattin, G Cosendey, ...
Japanese Journal of Applied Physics 52 (8S), 08JG04, 2013
432013
Analysis of structurally sensitive loss in GaN-based VCSEL cavities and its effect on modal discrimination
E Hashemi, J Bengtsson, J Gustavsson, M Stattin, G Cosendey, ...
Optics Express 22 (1), 411-426, 2014
402014
Relative intensity noise (RIN) in high-speed VCSELs for short reach communication
SE Hashemi
372012
TiO2 membrane high-contrast grating reflectors for vertical-cavity light-emitters in the visible wavelength regime
E Hashemi, J Bengtsson, JS Gustavsson, S Carlsson, G Rossbach, ...
Journal of Vacuum Science & Technology B 33 (5), 2015
312015
Electrically Injected GaN-Based Vertical-Cavity Surface-Emitting Lasers with TiO2 High-Index-Contrast Grating Reflectors
TC Chang, E Hashemi, KB Hong, J Bengtsson, J Gustavsson, Å Haglund, ...
ACS Photonics 7 (4), 861-866, 2020
302020
Progress and challenges in electrically pumped GaN-based VCSELs
Å Haglund, E Hashemi, J Bengtsson, J Gustavsson, M Stattin, M Calciati, ...
Semiconductor Lasers and Laser Dynamics VII 9892, 161-180, 2016
212016
Effect of compositional interlayers on the vertical electrical conductivity of Si-doped AlN/GaN distributed Bragg reflectors grown on SiC
E Hashemi, F Hjort, M Stattin, T Ive, O Bäcke, A Lotsari, M Halvarsson, ...
Applied Physics Express 10 (5), 055501, 2017
72017
Thermal lensing effects on lateral leakage in GaN-based vertical-cavity surface-emitting laser cavities
E Hashemi, J Bengtsson, J Gustavsson, M Calciati, M Goano, Å Haglund
Optics Express 25 (9), 9556-9568, 2017
62017
GaN vertical-cavity surface-emitting laser with a high-contrast grating reflector
TC Chang, SY Kuo, E Hashemi, Å Haglund, TC Lu
High Contrast Metastructures VII 10542, 30-35, 2018
52018
Air-suspended TiO2-based HCG reflectors for visible spectral range
SE Hashemi, J Bengtsson, J Gustavsson, S Carlsson, G Rossbach, ...
SPIE OPTO (High Contrast Metastructures IV) 9372, 93720D-93720D-8, 2015
42015
GaN-based vertical-cavity surface-emitting laser incorporating a TiO2 high-index-contrast grating
TC Chang, E Hashemi, J Bengtsson, J Gustavsson, Å Haglund, TC Lu
Gallium Nitride Materials and Devices XV 11280, 69-74, 2020
12020
Lasing action in GaN-based VCSELs with top high-contrast grating reflectors
TC Chang, SY Kuo, E Hashemi, Å Haglund, TC Lu
2018 IEEE International Semiconductor Laser Conference (ISLC), 1-2, 2018
12018
Vertical electrical conductivity of ZnO/GaN multilayers for application in distributed bragg reflectors
F Hjort, E Hashemi, D Adolph, T Ive, O Bäcke, M Halvarsson, Å Haglund
IEEE Journal of Quantum Electronics 54 (4), 1-6, 2018
12018
Electrically conductive ZnO/GaN distributed Bragg reflectors grown by hybrid plasma-assisted molecular beam epitaxy
F Hjort, E Hashemi, D Adolph, T Ive, Å Haglund
Gallium Nitride Materials and Devices XII 10104, 101-109, 2017
12017
Blue and ultraviolet vertical-cavity surface-emitting lasers
Å Haglund, M Bergmann, F Hjort, E Hashemi, J Bengtsson, J Gustavsson
CLEO: Science and Innovations, SM4N. 1, 2019
2019
Optical Guiding and Feedback Structures in GaN-based Vertical-cavity Surface-emitting Lasers
SE Hashemi
PQDT-Global, 2016
2016
Engineering the transverse optical guiding in GaN-based VCSELs to avoid detrimental optical loss
SE Hashemi, JS Gustavsson, J Bengtsson, M Stattin, A Larsson, ...
International Workshop on Nitride Semiconductors 2012, October 14-19, 2012 …, 2012
2012
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論文 1–18