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Ultra-fast diagnosis of shock waves and plasma at front and rear surfaces in the bulk of fused silica induced by an Nd:YAG pulse laser 被引量:1

Ultra-fast diagnosis of shock waves and plasma at front and rear surfaces in the bulk of fused silica induced by an Nd:YAG pulse laser
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摘要 We investigate the dynamic processes of the Nd:YAG pulse laser ablation of fused silica by ultrafast time- resolved optical diagnosis with a nanosecond time resolution. The evolution process of plasma expansion in air and shock waves propagation in the bulk are both obtained with spatial and temporal resolutions. Laser-induced damage in the bulk of fused silica with filaments and shock waves are observed. Thermoela.stic wave, mechanical wave, and shock wave dependence on the laser fluence and intensity of the plasma are analyzed. The shock pressure P and temperature T calculated through the measured shock velocity D and the Hugoniot data of fused silica are measured. We investigate the dynamic processes of the Nd:YAG pulse laser ablation of fused silica by ultrafast time- resolved optical diagnosis with a nanosecond time resolution. The evolution process of plasma expansion in air and shock waves propagation in the bulk are both obtained with spatial and temporal resolutions. Laser-induced damage in the bulk of fused silica with filaments and shock waves are observed. Thermoela.stic wave, mechanical wave, and shock wave dependence on the laser fluence and intensity of the plasma are analyzed. The shock pressure P and temperature T calculated through the measured shock velocity D and the Hugoniot data of fused silica are measured.
出处 《Chinese Optics Letters》 SCIE EI CAS CSCD 2016年第5期52-56,共5页 中国光学快报(英文版)
基金 supported by the National Natural Science Foundation of China(Nos.61505171 and 61505170) the Joint Funds of the National Natural Science Foundation of China(No.U1530109)
关键词 Laser ablation Laser damage Neodymium lasers Plasma diagnostics Shock waves SILICA Laser ablation Laser damage Neodymium lasers Plasma diagnostics Shock waves Silica
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