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Characteristics of optical emission during laser-induced damage events of fused silica

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摘要

Spontaneous optical emission properties of laser-produced plasma during laser damage events at input and exit surfaces of fused silica were retrieved and compared. We show that plasma at the input surface is much larger in size and exhibits significantly higher electron number density and excitation temperature even when smaller laser energy was used. This effect was attributed to the stronger laser-plasma coupling at the input surface. In addition, a strong continuum background containing three peaks at 1.3 eV, 1.9 eV and 2.2 eV was observed at the exit surface and possible origins for this effect are also discussed.

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作者单位:

    中科院安徽光机所 环境光学中心
    合肥 中科院安徽光机所环境光学中心

引用该论文

Shen Chao,Zhao Nanjing,Pribosek Jaka,Ma Mingjun,Fang Li,Huang xingjiu,Zhang Yujun. Characteristics of optical emission during laser-induced damage events of fused silica[J].Chinese Optics Letters,2019,17(12):12.