26 September 2016 Proton radiation experimental results on a III-V nBn mid-wavelength infrared focal plane array
Author Affiliations +
Abstract
This paper will report on the proton, and total ionizing dose characterizations of an MWIR nBn detector array. The FPA was fabricated using MWIR nBn infrared detectors, which have a cutoff wavelength of approximately 5.0 μm at 120 K. Full radiometric characterizations were performed at multiple total ionizing dose levels to determine the impact of the radiation on the FPA noise, responsivity, NEI, and dynamic range. Displacement damage effects on the MWIR nBn detectors was evaluated at a proton energy of 63 MeV. These displacement damage effects primarily degrade the performance of the detector array through increased dark current, generation of "hot pixels" due to elevated dark current that form a tail to the dark current distribution, reduction in responsivity, and degraded uniformity. The majority of the performance degradation of the MWIR nBn detectors due to proton interactions can be attributed to a reduction in the minority carrier lifetime in the absorber region of the nBn detector.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John E. Hubbs, John E. Hubbs, "Proton radiation experimental results on a III-V nBn mid-wavelength infrared focal plane array", Proc. SPIE 9933, Optical Sensing, Imaging, and Photon Counting: Nanostructured Devices and Applications 2016, 993307 (26 September 2016); doi: 10.1117/12.2240199; https://doi.org/10.1117/12.2240199
PROCEEDINGS
16 PAGES


SHARE
RELATED CONTENT

MWIR InAsSb FPA data and analysis
Proceedings of SPIE (October 06 2014)
HgCdTe position sensitive detector (PSD) development
Proceedings of SPIE (July 27 2010)
640 x 480 PACE HgCdTe FPA
Proceedings of SPIE (December 09 1992)
State-of-the-art HgCdTe infrared devices
Proceedings of SPIE (April 12 2000)

Back to Top