Recent advances in LWIR Type – II InAs/GaSb superlattice photodetectors and focal plane arrays at the Center for Quantum Devices

Manijeh Razeghi; Darin Hoffman; Binh-Minh Nguyen; Pierre-Yves Delaunay; Edward Kwei-wei Huang; Meimei Z. Tidrow

doi:10.1117/12.782854

2 May 2008 Recent advances in LWIR Type-II InAs/GaSb superlattice photodetectors and focal plane arrays at the Center for Quantum Devices

Manijeh Razeghi, Darin Hoffman, Binh-Minh Nguyen, Pierre-Yves Delaunay, Edward Kwei-wei Huang, Meimei Z. Tidrow

Author Affiliations +

Proceedings Volume 6940, Infrared Technology and Applications XXXIV; 694009 (2008) https://doi.org/10.1117/12.782854
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

In recent years, Type-II InAs/GaSb superlattice photo-detectors have experienced significant improvements in material quality, structural designs, and imaging applications. They now appear to be a possible alternative to the state-of-the-art HgCdTe (MCT) technology in the long and very long wavelength infrared regimes. At the Center for Quantum Devices, we have successfully realized very high quantum efficiency, very high dynamic differential resistance R₀A product LWIR Type-II InAs/GaSb superlattice photodiodes with efficient surface passivation techniques. The demonstration of high quality LWIR Focal Plane Arrays that were 100% fabricated in-house reaffirms the pioneer position of this university-based laboratory.

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Manijeh Razeghi, Darin Hoffman, Binh-Minh Nguyen, Pierre-Yves Delaunay, Edward Kwei-wei Huang, and Meimei Z. Tidrow "Recent advances in LWIR Type-II InAs/GaSb superlattice photodetectors and focal plane arrays at the Center for Quantum Devices", Proc. SPIE 6940, Infrared Technology and Applications XXXIV, 694009 (2 May 2008); https://doi.org/10.1117/12.782854

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