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Proceedings Paper

Influence of optical surface error on scattering loss of optical mirror
Author(s): Dongliang Wu; Yifan Dai; Guilin Wang
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Paper Abstract

In view of the primary mirror of large optical system, the influence of surface error on ratio of scattering loss (RSL) is analyzed. The mathematical model among the root-mean square (RMS) error, the correlation length (l) of autocorrelation function of optical elements and the RSL is established by assuming that the surface error is a stationary Gaussian random process with statistical optics theory and Harvey-Shack scatter theory, and the influence of surface error on RSL with simulation computation is analyzed. It is found that RSL increases almost in exponential form with the increasing of RMS and declines in exponential form with the increasing of the correlation length. The mathematical model agrees with the simulation results very well, which can be used to analyze the influence of RMS and the correlation length on the RSL and provide the support for the further finishing and figuring of the optical surface profile.

Paper Details

Date Published: 6 May 2009
PDF: 6 pages
Proc. SPIE 7281, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 728106 (6 May 2009); doi: 10.1117/12.831428
Show Author Affiliations
Dongliang Wu, National Univ. of Defense Technology (China)
Yifan Dai, National Univ. of Defense Technology (China)
Guilin Wang, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 7281:
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Wenhan Jiang; Roland Geyl; Myung K. Cho; Fan Wu, Editor(s)

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