Characterization of multicolor type-II InAs/GaSb strained-layer superlattice photodetectors for use in astronomical observation

Andre F. Wong; Matthew J. Nelson; Elena A. Plis; Michael F. Skrutskie; Lihong Yao; Tom Vandervelde; Sanjay Krishna; Hasul Kim; Arezou Khoshakhlagh; Stephen A. Myers

doi:10.1117/12.857786

22 July 2010 Characterization of multicolor type-II InAs/GaSb strained-layer superlattice photodetectors for use in astronomical observation

Andre F. Wong, Matthew J. Nelson, Elena A. Plis, Michael F. Skrutskie, Lihong Yao, Tom Vandervelde, Sanjay Krishna, Hasul Kim, Arezou Khoshakhlagh, Stephen A. Myers

Author Affiliations +

Proceedings Volume 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV; 774223 (2010) https://doi.org/10.1117/12.857786
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

We report on the testing of a set of InAs/GaSb multicolor strained-layer superlattice photodetectors and Dotin- Well detectors grown with InAs dots in InGaAs/GaAs wells fabricated by the Center for High Technology Materials at the University of New Mexico. These devices are 2-color devices sensitive to near-IR and mid-IR wavelengths. The wavelength sensitivities of these devices are a function of the applied forward and reverse bias. We present measurements of the dark current and relative spectral response of these photodetectors measured at both cryogenic and room temperatures.

Citation Download Citation

Andre F. Wong, Matthew J. Nelson, Elena A. Plis, Michael F. Skrutskie, Lihong Yao, Tom Vandervelde, Sanjay Krishna, Hasul Kim, Arezou Khoshakhlagh, and Stephen A. Myers "Characterization of multicolor type-II InAs/GaSb strained-layer superlattice photodetectors for use in astronomical observation", Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 774223 (22 July 2010); https://doi.org/10.1117/12.857786

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