Li Xibin, Liu Chunming, Wang Haijun, et al. Mitigating laser induced damage in fused silica with CO2 laser[J]. High Power Laser and Particle Beams, 2012, 24: 1757-1760.
Citation:
Li Xibin, Liu Chunming, Wang Haijun, et al. Mitigating laser induced damage in fused silica with CO2 laser[J]. High Power Laser and Particle Beams, 2012, 24: 1757-1760.
Li Xibin, Liu Chunming, Wang Haijun, et al. Mitigating laser induced damage in fused silica with CO2 laser[J]. High Power Laser and Particle Beams, 2012, 24: 1757-1760.
Citation:
Li Xibin, Liu Chunming, Wang Haijun, et al. Mitigating laser induced damage in fused silica with CO2 laser[J]. High Power Laser and Particle Beams, 2012, 24: 1757-1760.
Laser induced damage sites in fused silica were irradiated by a galvanometer scanned CO2 laser. Most damage sites are completely repaired (no ablation deposits, air bubbles and cracks) and the largest is 500 m in diameter. Compared with localized mitigation, scanning mitigation can repair larger-sized damage, and bring about smaller surface deformation and lower thermal stress. The damage testing at 355 nm shows that, 80% of the mitigated damage sites can withstand the laser power density up to the initial damage threshold of the substrate.
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