Other
Scientific paper
Sep 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974aero.reptq....a&link_type=abstract
Interim Report Aerospace Corp., El Segundo, CA. Lab Operations.
Other
Dielectric Properties, Infrared Detectors, Photoconductors, Focusing, Germanium, Mercury (Metal)
Scientific paper
Studies were carried out on mercury-doped germanium (Ge:Hg) photoconductors with both chopped and scanned illumination at 3.39 micrometers, over 4 to 5 orders of magnitude in light intensity, and a wide range of pulse widths and background levels. Contrary to the prediction of the dielectric relaxation model, a slightly sublinear response with light intensity was observed. In addition to the dielectric relaxation response time, another time constant that is about two orders of magnitude greater is present. It is this longer time constant that controls the approach to steady state conditions. Signals from focused, scanned beams were compared to those from uniform, chopped beams and showed that little degradation resulted from the focusing effect, but as much as 30 percent degradation could result from scanning. It is suggested that some of these anomalous effects result from the characteristics of the contact at the anode. (Modified author abstract)
Aukerman L. W.
Millea M. F.
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