
Proceedings Paper
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Paper Abstract
Recent efforts have been paid to elevate the operating temperature of Type II superlattice Mid Infrared photon
detectors. Using M-structure superlattice, novel device architectures have been developed, resulting in significant
improvement of the device performances. In this paper, we will compare different photodetector architectures and
discuss the optimization scheme which leads to almost one order of magnitude of improvement to the electrical
performance. At 150K, single element detectors exhibit a quantum efficiency above 50%, and a specific detectivity of
1.05x1012 cm.Hz1/2/W. BLIP operation with a 300K background and 2π FOV can be reached with an operating
temperature up to 130K. High quality focal plane arrays were demonstrated with a noise equivalent temperature
difference (NEDT) of 11mK up to 130K. Human body imaging is achieved at 165K with NEDT of 150mK.
Paper Details
Date Published: 31 May 2012
PDF: 9 pages
Proc. SPIE 8353, Infrared Technology and Applications XXXVIII, 835315 (31 May 2012); doi: 10.1117/12.923837
Published in SPIE Proceedings Vol. 8353:
Infrared Technology and Applications XXXVIII
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)
PDF: 9 pages
Proc. SPIE 8353, Infrared Technology and Applications XXXVIII, 835315 (31 May 2012); doi: 10.1117/12.923837
Show Author Affiliations
Manijeh Razeghi, Northwestern Univ. (United States)
Siamak Abdollahi Pour, Northwestern Univ. (United States)
Published in SPIE Proceedings Vol. 8353:
Infrared Technology and Applications XXXVIII
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)
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