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Proceedings Paper

Comparison of type-II superlattice and HgCdTe infrared detector technologies
Author(s): Jagmohan Bajaj; Gerry Sullivan; Don Lee; Ed Aifer; Manijeh Razeghi
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Paper 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.

Paper Details

Date Published: 8 June 2007
PDF: 8 pages
Proc. SPIE 6542, Infrared Technology and Applications XXXIII, 65420B (8 June 2007); doi: 10.1117/12.723849
Show Author Affiliations
Jagmohan Bajaj, Teledyne Scientific and Imaging (United States)
Gerry Sullivan, Teledyne Scientific and Imaging (United States)
Don Lee, Teledyne Scientific and Imaging (United States)
Ed Aifer, Naval Research Labs. (United States)
Manijeh Razeghi, Northwestern Univ. (United States)

Published in SPIE Proceedings Vol. 6542:
Infrared Technology and Applications XXXIII
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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