Cooled infrared filters and dichroics for the James Webb Space Telescope Mid-Infrared Instrument

Hawkins, 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 doi: 10.1364/AO.47.000C25

Abstract/Summary

The 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.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/15261
Item Type	Article
Refereed	Yes
Divisions	Science > School of Mathematical, Physical and Computational Sciences > Department of Computer Science
Uncontrolled Keywords	REFRACTIVE-INDEXES, CADMIUM TELLURIDE, TEMPERATURE, COEFFICIENTS, DESIGN, FILMS
Publisher	Optical Society of America
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