Zobrazeno 1 - 10
of 67
pro vyhledávání: '"M.H. MacDougal"'
Autor:
Randall Lott, Mitchell Oleson, Dustin Hibberd, M.H. MacDougal, Jeremy Thomas, Andrew Hood, Edward K. Huang, Vince Luong
Publikováno v:
Infrared Technology and Applications XLVII.
Small pixel pitch sensors offer opportunities for imaging system SWaP reduction that open up a variety of SWaP-constrained applications that were not previously feasible. Furthermore, small pixel digital sensors provide advantages in the form of addi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45e7db2a528aeb1774e2bddef3317f33
https://doi.org/10.1117/12.2588774
https://doi.org/10.1117/12.2588774
Publikováno v:
Infrared Technology and Applications XLVI.
Applications for short-wave infrared sensors continue to increase in commercial and military applications. Reducing pixel pitch decreases the size and cost expanding the ability to deploy sensors on smaller platforms including handheld and autonomous
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d19ef60e93026554090dc4280f811764
https://doi.org/10.1117/12.2558841
https://doi.org/10.1117/12.2558841
Publikováno v:
Infrared Technology and Applications XLV.
Attollo has developed large area low capacitance InGaAs detectors to meet the needs of LiDAR systems following the roadmap of technology development at the near Infrared (NIR) wavelengths of 850/905/940 nm with the eventual transition to eye-safe wav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49c380f3ee4444a06db1af942fa0b451
https://doi.org/10.1117/12.2521090
https://doi.org/10.1117/12.2521090
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 3:905-915
A procedure for fabricating vertical-cavity surface-emitting lasers (VCSELs) with oxide-based distributed Bragg reflectors (DBRs) is presented. An in-depth analysis of parameters and behavior unique to oxide VCSELs determines the device design. The d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7447fd0ec644d4ea606d484dc98c59b0
https://doi.org/10.1109/2944.640644
https://doi.org/10.1109/2944.640644
Effects of current spreading under oxide current aperture in vertical‐cavity surface‐emitting lasers
Publikováno v:
Journal of Applied Physics. 80:4837-4840
We discuss a buried oxide layer forming a current aperture in a vertical‐cavity surface‐emitting laser. The current spreading under the oxide current aperture leads to high threshold and dual‐longitudinal‐wavelength characteristics. One is th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3f2d64108e33ba739ab492c6234a5e4
https://doi.org/10.1063/1.363525
https://doi.org/10.1063/1.363525
Publikováno v:
IEEE Photonics Technology Letters. 16:1227-1229
We demonstrate record wavelength span from an eight-channel two-dimensional wavelength-division-multiplexed optically pumped vertical-cavity surface-emitting laser array. The array operates continuous wave above 65/spl deg/C and spans 140 nm of the S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73db7351ae4151650b26bc3f9b0e60db
https://doi.org/10.1109/lpt.2004.826262
https://doi.org/10.1109/lpt.2004.826262
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 1:196-202
High performance buried heterostructure InGaAs-GaAs-AlGaAs quantum-well lasers and laser arrays with tight spatial confinement of the electrical current and the optical fields have been fabricated by metalorganic chemical vapor deposition. The lasers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3570b7ff102f17d24d53eeabe7bcd49c
https://doi.org/10.1109/2944.401197
https://doi.org/10.1109/2944.401197
Publikováno v:
Journal of Crystal Growth. 145:824-831
The growth behavior of AlGaAs/GaAs/InGaAs structures on non-planar (100) GaAs substrates has been studied. The structures were grown by atmospheric pressure metalorganic chemical vapor deposition (MOCVD) on substrates which have mesa stipes aligned a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b6e9d9086ec4e7c344bdbce62a42222
https://doi.org/10.1016/0022-0248(94)91149-5
https://doi.org/10.1016/0022-0248(94)91149-5
Publikováno v:
IEEE Photonics Technology Letters. 10:15-17
The authors have measured the thermal impedance of vertical-cavity surface-emitting lasers (VCSELs) with oxide/GaAs DBRs and shown that it is comparable to that of VCSELs with all-semiconductor DBRs. A VCSEL with an 8-/spl mu/m oxide aperture shows a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4f51cdc798db66212a5d633c4bd66af
https://doi.org/10.1109/68.651085
https://doi.org/10.1109/68.651085
Autor:
M.H. MacDougal, P.D. Dapkus
Publikováno v:
IEEE Photonics Technology Letters. 9:884-886
The effect of multiple oxidations on Al/sub x/O/sub y/-GaAs DBRs and Al/sub x/O/sub y/-AlGaAs-GaAs DBRs is investigated. With a compositionally graded AlGaAs layer, the oxide DBR remains stable under thermal stress, whereas without it, the DBR fractu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f17ddc6219b302a1cae486db934e3374
https://doi.org/10.1109/68.593333
https://doi.org/10.1109/68.593333