Far infrared filters for the GALILEO-Jupiter and other missionsSeeley, J.S., Hunneman, R. and Whatley, A. (1981) Far infrared filters for the GALILEO-Jupiter and other missions. Applied Optics, 20 (1). pp. 31-39. ISSN 0003-6935 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: 10.1364/AO.20.000031 Abstract/SummaryExtrapolation of PbTe/II-VI multilayer interference-filter technique from 20 to beyond 40µm is described and PbTe transparency reviewed; improvements below 20µm are reported. A composite filter cutting on steeply at 40µm is described that uses absorptive films of ZnS and As2S3, thin Quartz, and supplementary multilayer interference. Absorptive filters are described containing the II-VI compounds since these are found transparent at wavelengths shorter and longer than their reststrahl.
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