Comparison of type-II superlattice and HgCdTe infrared detector technologies

Jagmohan Bajaj; Gerry Sullivan; Don Lee; Ed Aifer; Manijeh Razeghi

doi:10.1117/12.723849

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8 June 2007 Comparison of type-II superlattice and HgCdTe infrared detector technologies

Jagmohan Bajaj, Gerry Sullivan, Don Lee, Ed Aifer, Manijeh Razeghi

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Proceedings Volume 6542, Infrared Technology and Applications XXXIII; 65420B (2007) https://doi.org/10.1117/12.723849
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

Performance of HgCdTe detector technology surpasses all others in the mid-wave and long-wave infrared spectrum. This technology is relatively mature with current effort focused on improving uniformity, and demonstrating increased focal plane array (FPA) functionality. Type-II superlattice (InAs-GaSb and related alloys) detector technology has seen rapid progress over the past few years. The merits of the superlattice material system rest on predictions of even higher performance than HgCdTe and of engineering advantages. While no one has demonstrated Type-II superlattice detectors with performance superior to HgCdTe detectors, the difference in performance between these two technologies is decreasing. In this paper, we review the status and highlight relative merits of both HgCdTe and Type-II superlattice based detector technologies.

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Jagmohan Bajaj, Gerry Sullivan, Don Lee, Ed Aifer, and Manijeh Razeghi "Comparison of type-II superlattice and HgCdTe infrared detector technologies", Proc. SPIE 6542, Infrared Technology and Applications XXXIII, 65420B (8 June 2007); https://doi.org/10.1117/12.723849

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