6 October 2010 Surface damage mitigation of fused silica with CO2 laser
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Proceedings Volume 7655, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 765533 (2010) https://doi.org/10.1117/12.869088
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China
Abstract
CO2 laser with 10.6μm wavelength radiate on damage with size below 80μm. Through examining with 351nm wavelength ultra-violet, it is found the larger damage size is, the lower extent of damage threshold is enhanced. During mitigation, thermal stress resulted from short interaction time and asymmetrical temperature distribution. Radial crack generates after damage and could expand if exposed to ultraviolet laser. After annealed in an oven for 9 hours, crack in the sample was eliminated.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xi-Bin Li, Hai-Bing Lv, Xia Xiang, Hai-Jun Wang, Meng Chen, Xiao-Dong Yuan, Wan-Guo Zheng, "Surface damage mitigation of fused silica with CO2 laser", Proc. SPIE 7655, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 765533 (6 October 2010); doi: 10.1117/12.869088; https://doi.org/10.1117/12.869088
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