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Proceedings Paper

Manufacture and spectral assessment of the filters and antireflection coatings for use in the HIRDLS instrument
Author(s): Roger Hunneman; Gary John Hawkins
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Paper Abstract

This paper describes the design and manufacture of the filters and antireflection coatings used in the HIRDLS instrument. The multilayer design of the filters and coatings, choice of layer materials, and the deposition techniques adopted to ensure adequate layer thickness control is discussed. The spectral assessment of the filters and coatings is carried out using a FTIR spectrometer; some measurement results are presented together with discussion of measurement accuracy and the identification and avoidance of measurement artifacts. The post-deposition processing of the filters by sawing to size, writing of an identification code onto the coatings and the environmental testing of the finished filters are also described.

Paper Details

Date Published: 18 November 1998
PDF: 13 pages
Proc. SPIE 3437, Infrared Spaceborne Remote Sensing VI, (18 November 1998); doi: 10.1117/12.331312
Show Author Affiliations
Roger Hunneman, Univ. of Reading (United Kingdom)
Gary John Hawkins, Univ. of Reading (United Kingdom)


Published in SPIE Proceedings Vol. 3437:
Infrared Spaceborne Remote Sensing VI
Marija Strojnik; Bjorn F. Andresen, Editor(s)

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