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Proceedings Paper

Online detection of airborne molecular contamination and its influence on the sol-gel coating
Author(s): Xiangyang Pang; Mingying Sun; Quantang Fan; Xiong Huai; Congyu Wang; Zhigang Liu
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Paper Abstract

Cleanliness management is essential for the safe operation of high power laser systems. In order to maintain the transmittance and minimize the optics damage, we should protect the optics surface with coatings from contamination. Large aperture optics in the vacuum is easily contaminated by airborne molecular from material outgas. In this paper, we introduce the techniques of cleanliness management in SG-II-UP laser facility. The online monitoring of surface airborne molecular contaminant is carried out with quartz crystal microbalance. We investigated the influence of the airborne molecular contaminant on the 351nm transmittance of fused silica optics with sol-gel coatings.

Paper Details

Date Published: 19 September 2018
PDF: 8 pages
Proc. SPIE 10748, Systems Contamination: Prediction, Control, and Performance 2018, 107480Z (19 September 2018); doi: 10.1117/12.2320199
Show Author Affiliations
Xiangyang Pang, Shanghai Institute of Optics and Fine Mechanics (China)
Mingying Sun, Shanghai Institute of Optics and Fine Mechanics (China)
Quantang Fan, Shanghai Institute of Optics and Fine Mechanics (China)
Xiong Huai, Shanghai Institute of Optics and Fine Mechanics (China)
Congyu Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Zhigang Liu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 10748:
Systems Contamination: Prediction, Control, and Performance 2018
Carlos E. Soares; Eve M. Wooldridge; Bruce A. Matheson, Editor(s)

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