Laser induced fluorescence of fused silica irradiated by KrF laser

被引：0
|
作者：
Gao, Zhixing [1 ]
Wang, Hui [2 ]
Han, Lixuan [1 ]
Tang, Xiuzhang [1 ]
Xiang, Zaikui [2 ]
机构：
[1] China Inst Atom Energy, High Power Excimer Laser Lab, Beijing 102413, Peoples R China
[2] China Bldg Mat Acad, Quartz & Special Glasses Inst, Beijing 100024, Peoples R China
来源：
PACIFIC RIM LASER DAMAGE 2015: OPTICAL MATERIALS FOR HIGH-POWER LASERS | 2015年 / 9532卷
关键词：
KrF; LIF; Laser induced damage; fused silica; INDUCED DEFECTS; DAMAGE; LUMINESCENCE; GLASS;
D O I：
10.1117/12.2186063
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
It is believed that the light emission induced by laser pulse gives some information on the damage initiation mechanics of fused silica. The laser induced fluorescence (LIF) of high purity fused silica irradiated by KrF laser is studied experimentally. LIF bands centered at 650nm of fused silica fused with surplus H-2 atmosphere was observed simultaneously with CCD and spectrometer in the cross direction of laser beam. Significant blue-shift of LIF is observed with the irradiation intensity increasing before laser induced breakdown. The technique to improve the signal intensity of LIF and the signal/noise ratio are discussed
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页数：5
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