Cooled filters 16-42µm for FIR astronomySeeley, J.S., Hunneman, R. and Whatley, A. (1980) Cooled filters 16-42µm for FIR astronomy. In: Spiro, I.J. (ed.) Modern utilization of infrared technology. Proceedings of SPIE, VI (253). SPIE, pp. 266-273. ISBN 9780892522828 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. Abstract/SummaryThe design and manufacture of dielectric-film interference filters for cooled FIR stronmy is described. The bands are 16.5-21.5µm, 17.5-19.5µm, 19.5-21.5µm and 27µm cut on. The films are PbTe/CdSe and the substrates are CdTe (some 1/2 mm thick), without absorption in the region: KRS-6 films are used for antireflection.
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