Performance and radiation tolerance of InAs/GaSb LWIR detectors based on CBIRD design

Alexander Soibel; David Z.-Y. Ting; Sir B. Rafol; Arezou Khoshakhlagh; Anita Fisher; Sam A. Keo; Sarath D. Gunapala

doi:10.1117/12.2242396

19 September 2016 Performance and radiation tolerance of InAs/GaSb LWIR detectors based on CBIRD design

Alexander Soibel, David Z.-Y. Ting, Sir B. Rafol, Arezou Khoshakhlagh, Anita Fisher, Sam A. Keo, Sarath D. Gunapala

Proceedings Volume 9974, Infrared Sensors, Devices, and Applications VI; 99740L (2016) https://doi.org/10.1117/12.2242396
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

We report our recent developments of antimonide based infrared photodetectors utilizing a complementary barrier infrared detector (CBIRD) design. The new generation of devices can operate close to zero bias with the same quantum efficiency as the initial design. 320x256 pixel long-wavelength infrared focal plane arrays utilizing optimized design have been demonstrated with 8.8 μm cutoff wavelength and noise equivalent differential temperature of 26 mK at operating temperature of 80 K for 300 K background and f/2 optics. As CBIRD detectors became valuable candidates for space-based instruments, question of their radiation tolerance became important. Here, we report our investigations of the proton irradiation effects on the photodetector performance.

Citation Download Citation

Alexander Soibel, David Z.-Y. Ting, Sir B. Rafol, Arezou Khoshakhlagh, Anita Fisher, Sam A. Keo, and Sarath D. Gunapala "Performance and radiation tolerance of InAs/GaSb LWIR detectors based on CBIRD design", Proc. SPIE 9974, Infrared Sensors, Devices, and Applications VI, 99740L (19 September 2016); https://doi.org/10.1117/12.2242396

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