Cooled infrared filters and dichroics for the James Webb Space Telescope Mid-Infrared InstrumentHawkins, G. and Sherwood, R. E. (2008) Cooled infrared filters and dichroics for the James Webb Space Telescope Mid-Infrared Instrument. Applied Optics, 47 (13). C25-C34. 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.47.000C25 Abstract/SummaryThe cooled infrared filters and dichroic beam splitters manufactured for the Mid-Infrared Instrument are key optical components for the selection and isolation of wavelengths in the study of astrophysical properties of stars, galaxies, and other planetary objects. We describe the spectral design and manufacture of the precision cooled filter coatings for the spectrometer (7 K) and imager (9 K). Details of the design methods used to achieve the spectral requirements, selection of thin film materials, deposition technique, and testing are presented together with the optical layout of the instrument. (C) 2008 Optical Society of America.
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