Dynamics of thin-film thermal detectors in infrared imaging systems. 1: basic equations and fourier analysis.
The complete Fourier analysis in space and time is performed for a three-dimensional model of thin-film thermal-imaging systems. The model includes heat losses by thermal radiation and by heat conduction within the film as well as into the adjacent medium. Dirac delta functions are used for the description of the specific heat and the thermal conductivity. The exact solutions of the basic heat equation are applied for a comparison of different types of the Panicon, a passive thermal imaging device. The relevant temperature response is illustrated in the Fourier space. The inclusion of the adjacent medium implies an occasional maximum of the response function in k space.
Martens
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Kneubühl
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