Infrared and Laser Engineering, Volume. 45, Issue 12, 1206009(2016)
Experimental comparison and analysis on damage performance of K9 glass irradiated by KrF excimer laser and pulse CO2 laser
It has very important application value to investigate the damage performance of K9 glass irradiated by ultraviolet excimer laser. In this paper, the experiment research on damage in K9 glass irradiated by 248 nm KrF excimer laser was carried out, the sample damage threshold and damage morphology were analyzed by means of metallurgical microscope and scanning electron microscope. The comparison of laser induced damage performance between KrF excimer laser and pulse CO2 laser were investigated. The experimental results indicate that the damage mechanism of K9 glass irradiated by KrF excimer laser and pulse CO2 laser mainly follow the thermal-mechanical coupling mechanism. However, there is apparent difference in damage threshold and damage time. For example, the damage threshold is lower and the damage time is shorter for KrF excimer laser. This can be explained by the difference in wavelength and photon energy between the KrF excimer laser and pulse CO2 laser. The research presented in this paper is helpful for further exploring the ultraviolet excimer laser damage mechanism of optical materials.
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Wang Xi, Fang Xiaodong. Experimental comparison and analysis on damage performance of K9 glass irradiated by KrF excimer laser and pulse CO2 laser[J]. Infrared and Laser Engineering, 2016, 45(12): 1206009
Category: 激光技术及应用
Received: Apr. 16, 2016
Accepted: May. 21, 2016
Published Online: Jan. 12, 2017
The Author Email: Xi Wang (eastangus@126.com)