Performance model for cooled IR filtersSeeley, J.S., Hawkins, G. J. and Hunneman, R. (1988) Performance model for cooled IR filters. Journal of Physics D: Applied Physics, 21 (10S). S71-S74. Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1088/0022-3727/21/10S/020 Abstract/SummaryA low-temperature model is described for infrared multilayer filters containing PbTe (or other semiconductor) and ZnSe (or other II/VI). The model is based on dielectric dispersion with semiconductor carrier dispersion added. It predicts an improved performance on cooling such as would be useful to avoid erroneous signals from optics in spaceflight radiometers. Agreement with measurement is obtained over the initial temperature range 70-400K and wavelength range 2.5-20µm.
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