Cleaning mechanism of particle contaminants on large aperture optical components by using air knife sweeping technology

Longfei Niu; Hao Liu; Xinxiang Miao; Haibing Lv; Xiaodong Yuan; Hai Zhou; Caizhen Yao; Guorui Zhou; Qin Li

doi:10.1117/12.2267980

12 May 2017 Cleaning mechanism of particle contaminants on large aperture optical components by using air knife sweeping technology

Longfei Niu, Hao Liu, Xinxiang Miao, Haibing Lv, Xiaodong Yuan, Hai Zhou, Caizhen Yao, Guorui Zhou, Qin Li

Author Affiliations +

Proceedings Volume 10173, Fourth International Symposium on Laser Interaction with Matter; 1017323 (2017) https://doi.org/10.1117/12.2267980
Event: 4th International Symposium on Laser Interaction with Matter, 2016, Chengdu, China

Abstract

The cleaning mechanism of optical surface particle contaminants in the light pneumatic tube was simulated based on the static equations and JKR model. Cleaning verification experiment based on air knife sweeping system and on-line monitoring system in high power laser facility was set up in order to verify the simulated results. Results showed that the removal ratio is significantly influenced by sweeping velocity and angle. The removal ratio can reach to 94.3% by using higher input pressure of the air knife, demonstrating that the air knife sweeping technology is useful for maintaining the surface cleanliness of optical elements, and thus guaranteeing the long-term stable running of the high power laser facility.

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Longfei Niu, Hao Liu, Xinxiang Miao, Haibing Lv, Xiaodong Yuan, Hai Zhou, Caizhen Yao, Guorui Zhou, and Qin Li "Cleaning mechanism of particle contaminants on large aperture optical components by using air knife sweeping technology", Proc. SPIE 10173, Fourth International Symposium on Laser Interaction with Matter, 1017323 (12 May 2017); https://doi.org/10.1117/12.2267980

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