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Proceedings Paper

Measurement method of optical film's damage threshold
Author(s): Shujie Geng; Xiuhua Fu
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Paper Abstract

When laser acts on an optical film, the film will be damaged even unable to work. In this article, a kind of measurement system of optical film's damage threshold is introduced, and it is applied to the experimental research of the reflection coating. The wavelengths of reflection and transmission extremums are determined, according to their spectral characteristic curve. The absorption of the film and the capacity of the film's bearing laser damage can be decided according to the displacement ?? of relative extremum. We can determine whether the film reaches the technical requirements by this means through the measurement of the sample film. Thus we can avoid the multi-repairs of the formal workpiece. There is a fine practical value of this method.

Paper Details

Date Published: 12 September 2002
PDF: 3 pages
Proc. SPIE 4915, Lasers in Material Processing and Manufacturing, (12 September 2002); doi: 10.1117/12.482913
Show Author Affiliations
Shujie Geng, Changchun Univ. of Science and Technology (China)
Xiuhua Fu, Changchun Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 4915:
Lasers in Material Processing and Manufacturing
ShuShen Deng; Tatsuo Okada; Klaus Behler; XingZong Wang, Editor(s)

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