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Proceedings Paper

Design and fabrication of IR filters with good flatness
Author(s): Anmin Zheng; Alan Whatley
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Paper Abstract

Stresses of single and multilayer films in the range of 5 to 40 micrometers are discussed together with their spectral performance. The flatness of a substrate after coating can be less than 4 fringes (2 (lambda) ), even 1 fringe at 0.5875 micrometers . The thermal evaporated thin film materials are IIB - VI compounds (IIB being Zn etc. and VI being S and Se etc. in the periodic table), and PbTe or Ge.

Paper Details

Date Published: 4 November 1994
PDF: 10 pages
Proc. SPIE 2253, Optical Interference Coatings, (4 November 1994); doi: 10.1117/12.192083
Show Author Affiliations
Anmin Zheng, Barr Associates, Ltd. (United Kingdom)
Alan Whatley, Barr Associates, Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 2253:
Optical Interference Coatings
Florin Abeles, Editor(s)

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