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Proceedings Paper

Small-angle scattering measurement
Author(s): Zu-Han Gu; Richard Sam Dummer
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Paper Abstract

Small angle scattering in and near the specular direction has recently been measured with a monostatic laser interferometric reflectometer for a laser beam incident normal to the surface. Employing the Ricean statistics of amplitude distribution for coherent glint with an additive scattered component of speckles, the scattered portion has been partitioned from the total reflected signal at 1.06 and 10.6 micrometers . Such measurements are basic to surface metrology and useful in assessing the performance of mirrors used in lasers and astronomical telescopes.

Paper Details

Date Published: 11 November 1991
PDF: 11 pages
Proc. SPIE 1558, Wave Propagation and Scattering in Varied Media II, (11 November 1991); doi: 10.1117/12.49642
Show Author Affiliations
Zu-Han Gu, Surface Optics Corp. (United States)
Richard Sam Dummer, Surface Optics Corp. (United States)

Published in SPIE Proceedings Vol. 1558:
Wave Propagation and Scattering in Varied Media II
Vijay K. Varadan, Editor(s)

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