中国物理B ›› 2016, Vol. 25 ›› Issue (10): 108104-108104.doi: 10.1088/1674-1056/25/10/108104

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Influence of secondary treatment with CO2 laser irradiation for mitigation site on fused silica surface

Yong Jiang(蒋勇), Qiang Zhou(周强), Rong Qiu(邱荣), Xiang Gao(高翔), Hui-Li Wang(王慧丽), Cai-Zhen Yao(姚彩珍), Jun-Bo Wang(王俊波), Xin Zhao(赵鑫), Chun-Ming Liu(刘春明), Xia Xiang(向霞), Xiao-Tao Zu(祖小涛), Xiao-Dong Yuan(袁晓东), Xin-Xiang Miao(苗心向)   

  1. 1 Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China;
    2 Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;
    3 School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • 收稿日期:2016-01-29 修回日期:2016-06-22 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: Xin-Xiang Miao E-mail:miaoxinxiang.714@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61505170, 61505171, and 51535003), the Joint Fund of the National Natural Science Foundation of China, the Chinese Academy of Engineering Physics (Grant No. U1530109), and the China Postdoctoral Science Foundation (Grant No. 2016M592709).

Influence of secondary treatment with CO2 laser irradiation for mitigation site on fused silica surface

Yong Jiang(蒋勇)1,3, Qiang Zhou(周强)1, Rong Qiu(邱荣)1, Xiang Gao(高翔)1, Hui-Li Wang(王慧丽)1, Cai-Zhen Yao(姚彩珍)2, Jun-Bo Wang(王俊波)1, Xin Zhao(赵鑫)1, Chun-Ming Liu(刘春明)3, Xia Xiang(向霞)3, Xiao-Tao Zu(祖小涛)3, Xiao-Dong Yuan(袁晓东)2, Xin-Xiang Miao(苗心向)2   

  1. 1 Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China;
    2 Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;
    3 School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • Received:2016-01-29 Revised:2016-06-22 Online:2016-10-05 Published:2016-10-05
  • Contact: Xin-Xiang Miao E-mail:miaoxinxiang.714@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61505170, 61505171, and 51535003), the Joint Fund of the National Natural Science Foundation of China, the Chinese Academy of Engineering Physics (Grant No. U1530109), and the China Postdoctoral Science Foundation (Grant No. 2016M592709).

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摘要： The ablation debris and raised rim, as well as residual stress and deep crater will be formed during the mitigation of damage site with a CO2 laser irradiation on fused silica surface, which greatly affects the laser damage resistance of optics. In this study, the experimental study combined with numerical simulation is utilized to investigate the effect of the secondary treatment on a mitigated site by CO2 laser irradiation. The results indicate that the ablation debris and the raised rim can be completely eliminated and the depth of crater can be reduced. Notable results show that the residual stress of the mitigation site after treatment will reduce two-thirds of the original stress. Finally, the elimination and the controlling mechanism of secondary treatment on the debris and raised rim, as well as the reasons for changing the profile and stress are analyzed. The results can provide a reference for the optimization treatment of mitigation sites by CO2 laser secondary treatment.

关键词: fused silica, CO2 laser, numerical simulation, secondary treatment

Abstract: The ablation debris and raised rim, as well as residual stress and deep crater will be formed during the mitigation of damage site with a CO2 laser irradiation on fused silica surface, which greatly affects the laser damage resistance of optics. In this study, the experimental study combined with numerical simulation is utilized to investigate the effect of the secondary treatment on a mitigated site by CO2 laser irradiation. The results indicate that the ablation debris and the raised rim can be completely eliminated and the depth of crater can be reduced. Notable results show that the residual stress of the mitigation site after treatment will reduce two-thirds of the original stress. Finally, the elimination and the controlling mechanism of secondary treatment on the debris and raised rim, as well as the reasons for changing the profile and stress are analyzed. The results can provide a reference for the optimization treatment of mitigation sites by CO2 laser secondary treatment.

Key words: fused silica, CO2 laser, numerical simulation, secondary treatment

中图分类号:  (Radiation treatment)

  • 81.40.Wx
42.70.Ce (Glasses, quartz) 78.20.Bh (Theory, models, and numerical simulation) 61.80.Ba (Ultraviolet, visible, and infrared radiation effects (including laser radiation))