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Proceedings Paper

Antireflection coatings for spectrometers with large spectral ranges
Author(s): James W. Baer; Jerold L. Cole
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Paper Abstract

It is common for spectrometers to cover large spectral ranges with a single focal plane. It is difficult or impossible to strongly suppress reflections with a single coating stack. Abutting short and long wavelengths coatings is expensive, and the performance can still be insufficient. We discuss a novel structure that comprises a single layer whose thickness varies along the length of the dispersed spectrum. Such a coating has high performance, is inexpensive, and has large fabrication tolerances. We further report on measurements of the performance of one such optic. Extension of the concept are discussed.

Paper Details

Date Published: 1 November 1996
PDF: 6 pages
Proc. SPIE 2863, Current Developments in Optical Design and Engineering VI, (1 November 1996); doi: 10.1117/12.256240
Show Author Affiliations
James W. Baer, Ball Aerospace and Technologies Corp. (United States)
Jerold L. Cole, Ball Aerospace and Technologies Corp. (United States)


Published in SPIE Proceedings Vol. 2863:
Current Developments in Optical Design and Engineering VI
Robert E. Fischer; Warren J. Smith, Editor(s)

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