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Proceedings Paper

Optical subsurface damage evaluation using LSCT
Author(s): Chunhui Wang; Ailing Tian
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Paper Abstract

The evaluation of subsurface damage (SSD) has become a key problem in optical engineering field. Laser scanning confocal technology (LSCT) is one of the potential SSD non-destructive evaluation (NDE) methods. Under three assumptions, an innovative and credible scattering model, which is to detect subsurface defect through LSCT, is built base on the classical Mie light scattering theory. Aimed to the model, three important parameters are discussed respectively that is N.A., wave length and relatively refraction index. In order to verify the reasonableness of the model, an effective measurement is done for a usual polished optical surface, and the survey result is in accord with the model. At last, several helpful conclusions about subsurface damage assessment using LSCT are given.

Paper Details

Date Published: 14 April 2010
PDF: 7 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75226K (14 April 2010); doi: 10.1117/12.852363
Show Author Affiliations
Chunhui Wang, Xi'an Technological Univ. (China)
Ailing Tian, Xi'an Technological Univ. (China)


Published in SPIE Proceedings Vol. 7522:
Fourth International Conference on Experimental Mechanics
Chenggen Quan; Kemao Qian; Anand Krishna Asundi; Fook Siong Chau, Editor(s)

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