Design requirements for high-sensitivity UV solar blind imaging detectors based on AlGaN/GaN photodetector arrays: a review

Cole W. Litton; P. J. Schreiber; Gary A. Smith; Tuoc Dang; Hadis Morkoc

doi:10.1117/12.448177

12 November 2001 Design requirements for high-sensitivity UV solar blind imaging detectors based on AlGaN/GaN photodetector arrays: a review

Cole W. Litton, P. J. Schreiber, Gary A. Smith, Tuoc Dang, Hadis Morkoc

Author Affiliations +

Proceedings Volume 4454, Materials for Infrared Detectors; (2001) https://doi.org/10.1117/12.448177
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

At present, band pass filtered, very high-gain photomultiplier tube (PMT) imaging sensors are employed to detect and image hot, UV emitting objects within the solar blind UV spectral region for wavelengths < 289 nm, either within or through the earth's atmosphere. In this paper we will reviews and summarize the stringent requirements that must be met in order to design AlGaN/GaN solar blind UV photodetector arrays that will have responsivities, detectivities, gain, speeds, and low noise levels comparable to those of present-day, high-gain PMT imaging detectors. Photodiode detectors operating in both the photovoltaic and photoconductive modes will be considered together with signal-gain that may be achieved through hybrid avalanche photodiodes and photodiodes operating in the pulsed Geiger mode.

Citation Download Citation

Cole W. Litton, P. J. Schreiber, Gary A. Smith, Tuoc Dang, and Hadis Morkoc "Design requirements for high-sensitivity UV solar blind imaging detectors based on AlGaN/GaN photodetector arrays: a review", Proc. SPIE 4454, Materials for Infrared Detectors, (12 November 2001); https://doi.org/10.1117/12.448177

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