17 December 1980 Cooled Filters 16-42 μm Wavelength For FIR Astronomy
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The design and manufacture of dielectric-film interference filters for cooled. FIR astronomy is described. The bands are 16.5-21.5 μm, 17.5-19.5 μm, 19.5-21.5 μm and 27 μm cut on. The films are PbTe/CdSe and the substrates are CdTe (some 12 mm thick), without absorption in the region: KRS-6 films are used for antireflection.
© (1980) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. S. Seeley, J. S. Seeley, R. Hunneman, R. Hunneman, A. Whatley, A. Whatley, } "Cooled Filters 16-42 μm Wavelength For FIR Astronomy", Proc. SPIE 0253, Modern Utilization of Infrared Technology VI, (17 December 1980); doi: 10.1117/12.959521; https://doi.org/10.1117/12.959521

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