Zobrazeno 1 - 10
of 24
pro vyhledávání: '"77"'
Publikováno v:
SPIE Proceedings.
This paper reports a study of Shockley-Read-Hall, radiative, and Auger recombination processes in a series of molecular beam epitaxy grown InAs/InAsSb mid-wavelength infrared and long-wavelength infrared type-II superlattice samples using temperature
Autor:
Oray Orkun Cellek, Elizabeth H. Steenbergen, Blair C. Connelly, Michael Wraback, Grace D. Metcalfe, Said Elhamri, A. W. K. Liu, Dmitri Lubyshev, Hongen Shen, Yong-Hang Zhang, Joel M. Fastenau, Yueming Qiu
Publikováno v:
SPIE Proceedings.
Temperature-dependent minority carrier lifetimes of InAs/InAs1-xSbx type-II superlattices are presented. The longest lifetime at 11 K is 504 ± 40 ns and at 77 K is 412 ± 25 ns. Samples with long periods and small wave function overlaps have both no
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
Publikováno v:
SPIE Proceedings.
Medium- and long-wavelength infrared (MWIR and LWIR) Hg1-xCdxTe photodiodes (x equals 0.265 - 0.295, 0.205 - 0.220) for 3 - 5-micrometer and 8 - 12- micrometer wavelength spectral regions were fabricated by arsenic diffusion from the vapor source int
Autor:
Andreas Wörl, Frank Rutz, Volker Daumer, Robert Rehm, T. Stadelmann, R. Müller, Jasmin Niemasz
Publikováno v:
International Conference on Space Optics — ICSO 2018.
Type-II superlattices (T2SLs) are currently recognized as the sole material system offering comparable performance to HgCdTe, yet providing higher operability, stability over time, spatial uniformity, scalability to larger formats, producibility and
Publikováno v:
Infrared Technology and Applications XLII.
We report on the development of dual-band InAs/GaSb type-II strained layer superlattices (T2SL) detectors with barrier designs at SK Infrared. Over the past five years, we demonstrated mid-wave/long-wave (MW/LWIR, cut-off wavelengths are 5 μm and 10
Publikováno v:
SPIE Proceedings.
The performance of a solid-state optical refrigerator is the result of a complex interplay of numerous optical and thermal parameters. We present a first preliminary study of an optical cryocooler using ray-tracing techniques. A numerical optimizatio
Publikováno v:
SPIE Proceedings.
We report a bias selectable dual-band mid-wave infrared (MWIR) and long-wave infrared (LWIR) co-located detector with 3 μm active region thickness per channel that is highly selective and can perform under high operating temperatures for the MWIR ba
Publikováno v:
SPIE Proceedings.
Thin films (1-10 μm thickness) of nanocomposites (NCs) based on coordinated compounds (CC) Tb(TTA) 2 (Ph 3 PO) 2 NO 3 (where TTA is thenoyltrifluoroacetonate (C 8 H 5 F 3 O 2 S), Ph 3 PO - triphenylphosphine oxide) and polymer – polyvinylpyrrolido
Autor:
Gerard Anthony Luppino, Michael Eads, Majid Zandian, Ryan Bradley, Eric Moore, Mark Farris, Craig A. Cabelli, Selmer Anglin, Rick Demers, Min Xu, Donald E. Cooper, Richard Blank, Sid Bhargava, William Lavelle, Jing Chen, James W. Beletic, Raphael Ricardo, E. Piquette
Publikováno v:
High Energy, Optical, and Infrared Detectors for Astronomy V.
Teledyne’s H2RG focal plane arrays have been widely used in scientific infrared and visible instruments for ground-based and space-based telescopes. The majority of applications use the H2RG with 2.5 micron cutoff HgCdTe detector pixel at an operat