Detection of the damage threshold of fused silica components and morphologies of repaired damage sites based on the beam deflection method

作者：Zhang, Jiangmei; Gao, Xiang^*; Wang, Kunpeng; Liu, Youyong; Yang, Xiuhong; Ao, Yihui

来源：Open Physics, 2018, 16(1): 539-543.

DOI：10.1515/phys-2018-0070

• Laser-induced breakdown
• Beam deflection method
• Optical materials

This article proposes a method to quickly detect the damage threshold of the fused silica components and the characteristics of the repair point damage. With a device detecting the beam deflection, the laser damage threshold is detected, quickly and effectively. Then, based on the beam deflection though mitigated sites, the beam deflection signals of the damage repair points are measured and the morphologies of mitigated sites are analyzed. This method is helpful in the online assessment of the damage resistance of the downstream optics and provides the guidance of the repair process.

• 出版日期2018-1
• 单位中国工程物理研究院激光聚变研究中心; 西南科技大学; 中国工程物理研究院