29 November 2010 Damage phenomenon of large-aperture fused silica grating
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Abstract
Laser induced damage experiment was carried out on a large aperture laser facility. Severe damage has been observed on a large-aperture fused silica grating which presented dense craters on the front surface and six cracks alternatively located at the front and the rear surface. The bizarre fact about the damage on the grating is that, unlike other optics, the damage craters are almost on the front surface. According to observation, damage phenomenon is due to the Stimulated Brillouin Scattering (SBS) effect happened in the grating.
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Wei Han, Wei Han, Fuquan Li, Fuquan Li, Bin Feng, Bin Feng, Yong Xiang, Yong Xiang, Feng Jing, Feng Jing, Wanguo Zheng, Wanguo Zheng, "Damage phenomenon of large-aperture fused silica grating", Proc. SPIE 7842, Laser-Induced Damage in Optical Materials: 2010, 784228 (29 November 2010); doi: 10.1117/12.866327; https://doi.org/10.1117/12.866327
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