Analysis and performance of type-II superlattice infrared detectors

Igor Vurgaftman; Chadwick L. Canedy; Eric M. Jackson; Jill A. Nolde; Chaffra A. Affouda; Edward H. Aifer; Jerry R. Meyer; Andrew D. Hood; Allan J. Evans; William E. Tennant

doi:10.1117/1.3578926

1 June 2011 Analysis and performance of type-II superlattice infrared detectors

Igor Vurgaftman, Chadwick L. Canedy, Eric M. Jackson, Jill A. Nolde, Chaffra A. Affouda, Edward H. Aifer, Jerry R. Meyer, Andrew D. Hood, Allan J. Evans, William E. Tennant

Author Affiliations +

Optical Engineering, Vol. 50, Issue 6, 061007 (June 2011). https://doi.org/10.1117/1.3578926

Abstract

We discuss the current performance of long-wavelength infrared photodetectors based on type-II superlattices, and the projected characteristics for diffusion-limited operation. For optimized architectures such as graded-gap and abrupt-heterojunction designs, the dark currents are strongly dominated by Shockley-Read (SR) rather than Auger processes. A factor of 10 improvement over the demonstrated SR lifetimes would lead to a factor of 4 lower dark current than state-of-the-art HgCdTe devices.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Igor Vurgaftman, Chadwick L. Canedy, Eric M. Jackson, Jill A. Nolde, Chaffra A. Affouda, Edward H. Aifer, Jerry R. Meyer, Andrew D. Hood, Allan J. Evans, and William E. Tennant "Analysis and performance of type-II superlattice infrared detectors," Optical Engineering 50(6), 061007 (1 June 2011). https://doi.org/10.1117/1.3578926

Published: 1 June 2011

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