Computer Science
Scientific paper
Nov 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001spie.4454..218l&link_type=abstract
Proc. SPIE Vol. 4454, p. 218-232, Materials for Infrared Detectors, Randolph E. Longshore; Ed.
Computer Science
Scientific paper
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.
Dang Tuoc
Litton Cole W.
Morkoc Hadis
Schreiber P. J.
Smith Gary A.
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