Zobrazeno 1 - 10
of 11
pro vyhledávání: '"77"'
Autor:
Jarrod Vaillancourt, Xuejun Lu
Publikováno v:
SPIE Proceedings.
We report a very longwave Infrared (> 14 μm) quantum dot photodetector working at 77 K. Very longwave infrared (VLWIR) detection at a cut-off wavelength of 15.3 μm was achieved through QD size engineering. Peak specific photodetectivity D* of 3.3x1
Autor:
Eric A. DeCuir, Omar Manasreh, Euclydes Marega, Gregory J. Salamo, Jiang Wu, Vasyl P. Kunets, Petr M. Lytvyn, B. S. Passmore
Publikováno v:
SPIE Proceedings.
Interband and intersubband transitions in self-assembled InAs quantum dots embedded in an InGaAs graded well have been investigated for their use in visible to mid-infrared (0.4 - 20 μm) detection applications. The materials were grown by molecular
Publikováno v:
SPIE Proceedings.
Quantum dot infrared photodetectors (QDIPs) have recently emerged as promising candidates for detection in the middle wavelength infrared (MWIR) and long wavelength infrared (LWIR) ranges. This is due to the QDIPs' absorption of normally incident lig
Publikováno v:
Advanced Photon Counting Techniques III.
We report new results on the design, fabrication and characterization of a novel midinfrared sensor called quantum dot avalanche photodiode (QDAP). The QDAP consists of a quantum dots-in-a-well (DWELL) detector coupled with an avalanche photodiode (A
Autor:
E. R. Blazejewski, D. Z. Ting, Sir B. Rafol, Sarath D. Gunapala, C. A. Shott, John K. Liu, Yun-Chorng Chang, Sanjay Krishna, Sam A. Keo, Cory J. Hill, Sumith V. Bandara, Jason M. Mumolo
Publikováno v:
SPIE Proceedings.
Epitaxially grown self-assembled InAs/InGaAs/GaAs quantum dots (QDs) are exploited for the development of large-format long-wavelength infrared (LWIR) focal plane arrays (FPAs). The Dot-in-a-Well (DWELL) structures were experimentally shown to absorb
Autor:
John K. Liu, Sir B. Rafol, Sumith V. Bandara, E. R. Blazejewski, Sam A. Keo, Sanjay Krishna, Sarath D. Gunapala, C. A. Shott, Jason M. Mumolo, D. Z. Ting, Cory J. Hill, Yia-Chung Chang
Publikováno v:
SPIE Proceedings.
We have exploited the artificial atom-like properties of epitaxially grown self-assembled quantum dots (QDs) for the development of high operating temperature long wavelength infrared (LWIR) focal plane arrays (FPAs). QD infrared photodetectors (QDIP
Autor:
Susanne Almqvist, Anders Mikkelsen, Hedda Malm, Håkan Pettersson, Carl Asplund, Edvin Lundgren, Per-Olof Holtz, Jan Y. Andersson, Linda Höglund, E. Petrini, Qin Wang, Jan Borglind, Sergiy Smuk, Lassana Ouattara
Publikováno v:
SPIE Proceedings.
We report on a quantum dots-in-a-well infrared photodetector (DWELL QDIP) grown by metal organic vapor phase epitaxy. The DWELL QDIP consisted of ten stacked InAs/In0.15Ga0.85As/GaAs QD layers embedded between n-doped contact layers. The density of t
Autor:
Sam A. Keo, Sarath D. Gunapala, D. Z. Ting, Sumith V. Bandara, Jason M. Mumolo, C. A. Shott, Yun-Chorng Chang, Sanjay Krishna, John K. Liu, Cory J. Hill, Sir B. Rafol, E. R. Blazejewski
Publikováno v:
SPIE Proceedings.
We have exploited the artificial atom-like properties of epitaxially grown self-assembled quantum dots (QDs) for the development of high operating temperature long wavelength infrared (LWIR) focal plane arrays (FPAs). QD infrared photodetectors (QDIP
Autor:
E. R. Blazejewski, Sumith V. Bandara, Sir B. Rafol, Cory J. Hill, Sanjay Krishna, John K. Liu, Sam A. Keo, Sarath D. Gunapala, David Z. Ting, Y. C. Chang, Jason M. Mumolo, C. A. Shott
Publikováno v:
SPIE Proceedings.
We have exploited the artificial atomlike properties of epitaxially self-assembled quantum dots for the development of high operating temperature long wavelength infrared (LWIR) focal plane arrays. Quantum dots are nanometer-scale islands that form s
Publikováno v:
SPIE Proceedings.
We report our recent results about mid-wavelength infrared quantum-dot infrared photodetectors (QDIPs) grown by low-pressure metalorganic chemical vapor deposition. A very high responsivity and a very low dark current were obtained. A high peak detec