Paper
14 July 2015 Laser-induced fluorescence of fused silica irradiated by KrF laser
Zhixing Gao, Hui Wang, Lixuan Han, Xiuzhang Tang, Zaikui Xiang
Author Affiliations +
Abstract
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 H2 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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Zhixing Gao, Hui Wang, Lixuan Han, Xiuzhang Tang, and Zaikui Xiang "Laser-induced fluorescence of fused silica irradiated by KrF laser", Proc. SPIE 9532, Pacific Rim Laser Damage 2015: Optical Materials for High-Power Lasers, 95321C (14 July 2015); https://doi.org/10.1117/12.2186063
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KEYWORDS
Laser induced fluorescence

Silica

Laser induced damage

Spectroscopy

Luminescence

Laser energy

Fusion energy

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