10 June 1987 Measurements Of Diamond-Turned Copper Mirrors At Glancing Incidence
Author Affiliations +
Proceedings Volume 0751, Reflective Optics; (1987) https://doi.org/10.1117/12.939896
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States
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.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wayne D. Kimura, Wayne D. Kimura, Theodore T. Saito, Theodore T. Saito, } "Measurements Of Diamond-Turned Copper Mirrors At Glancing Incidence", Proc. SPIE 0751, Reflective Optics, (10 June 1987); doi: 10.1117/12.939896; https://doi.org/10.1117/12.939896


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