Physics
Scientific paper
Nov 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1341..423s&link_type=abstract
IN: Infrared technology XVI; Proceedings of the Meeting, San Diego, CA, July 11-13, 1990 (A92-21426 07-35). Bellingham, WA, Soci
Physics
Infrared Tracking, Low Pass Filters, Pixels, Time Dependence, Glassy Carbon, Infrared Radiation, Nondestructive Tests, Yag Lasers
Scientific paper
The thermal response of a surface layer of a pixel on an infrared target simulator is discussed. This pixel is maintained at a constant temperature by a rapidly scanning laser beam. An analytical model has been developed to describe the exact temperature dependence of a pixel as a function of time for different pixel refresh rates. The top layer of the pixel surface that generates the gray-body radiation shows the temperature dependence on time that is characteristic of a low-pass filter. The experimental results agree with the analytical predictions. The application of a pulsed laser beam to a noncontact, nondestructive diagnostic technique of surface characterization for the presence of microdefects is discussed.
Scholl James W.
Scholl Marija S.
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