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Proceedings Paper

Measurements Of Diamond-Turned Copper Mirrors At Glancing Incidence
Author(s): Wayne D. Kimura; Theodore T. Saito
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Paper Abstract

The results of glancing incidence absorptance measurements performed on diamond-turned copper mirrors are presented. A photoacoustic calorimetry technique is used in which the output from a low power, chopped cw Nd:YAG laser (1.06 μm) is incident upon the mirror at angles of incidence from 0 to 87°, for both s and p-polarizations. Measurements are obtained as a function of the diamond turning groove orientation with respect to the plane of incidence. Minimum absorptance, at high angles of incidence, is achieved with s-polarized light and with the grooves aligned parallel to the plane of incidence. The affects on the absorptance of a large scratch at glancing incidence are also described.

Paper Details

Date Published: 10 June 1987
PDF: 8 pages
Proc. SPIE 0751, Reflective Optics, (10 June 1987); doi: 10.1117/12.939896
Show Author Affiliations
Wayne D. Kimura, Spectra Technology, Inc. (United States)
Theodore T. Saito, Lawrence Livermore National Laboratory (United States)

Published in SPIE Proceedings Vol. 0751:
Reflective Optics
Dietrich G. Korsch, Editor(s)

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