Acoustic emission during the millisecond laser-optical glass interaction assisted by the nanosecond laser
Acoustic emission during the millisecond laser-optical glass interaction assisted by the nanosecond laser
复制标题
纳秒激光辅助下毫秒激光与光学玻璃相互作用过程中的声发射
DOI：
10.1063/1.5053432
复制
发表时间：
2018-12
期刊：
影响因子：
1.6
通讯作者：
Bin Wang
中科院分区：
文献类型：
--
作者：
Yunxiang Pan;Zhujie Wu;Yuxiang Sun;Hongchao Zhang;Zhonghua Shen;Jian Lu;Xiaowu Ni;Bin Wang
利用水听器对组合脉冲激光（CPL）与BK 7玻璃相互作用的声发射进行了探测。CPL由纳秒（ns）激光和毫秒（ms）激光组成，它们间隔一定的时间段。由于材料缺陷的影响机制，在纳秒激光相互作用期间，观察到声发射的传输时间和强度的波动。在剩余的毫秒激光照射期间，分别检测到微弱和强烈的声发射，其频谱主要在10 kHz-60 kHz和小于8 kHz的范围内。分析了两种不同的声发射行为，并结合高速摄像机捕捉到的激光辐照过程中羽流发射的演变和烧蚀样品的形貌进行了分析。结果表明，高频声信号产生于一个微弱的相互作用过程，即观察到短寿命的羽流发射和样品表面的浅坑。而低频声信号与强烈的相互作用过程相关，即检测到强烈的羽流发射和锥形空腔。声发射、羽流发射和烧蚀尺寸随时间变化的一致性，使得声信号检测成为监测CPL-BK 7玻璃相互作用过程和评估烧蚀结果的可靠方法。CPL由纳秒（ns）激光和毫秒（ms）激光组成，它们间隔一定的时间段。由于材料缺陷的影响机制，在纳秒激光相互作用期间，观察到声发射的传输时间和强度的波动。在剩余的毫秒激光照射期间，分别检测到微弱和强烈的声发射，其频谱主要在10 kHz-60 kHz和小于8 kHz的范围内。分析了两种不同的声发射行为，并结合高速摄像机捕捉到的激光辐照过程中羽流发射的演变和烧蚀样品的形貌进行了分析。结果表明，高频声信号来源于短寿命羽流发射和样品表面浅坑的弱相互作用过程。
A hydrophone is used to detect the acoustic emission for the combined pulsed laser (CPL)-BK7 glass interaction. The CPL is composed of a nanosecond (ns) laser and a millisecond (ms) laser, which are separated with a certain period of time. Owing to the material defects affected mechanism, fluctuations are observed for the transmission time and the intensity of the acoustic emission during the ns laser interaction period. A weak and a strong acoustic emissions with spectrums dominated in the ranges of 10kHz∼60kHz and less than 8kHz, respectively, are detected during the remaining millisecond laser irradiation period. The two different behaviors of the acoustic emission are analyzed together with the evolution of the plume emission captured by the high speed camera during the laser irradiation and the ablated morphology on the sample. Results show that the high-frequency acoustic signal arises from a weak interaction process that a short lifetime plume emission and a shallow pit at the sample surface are observed. While the low-frequency acoustic signal is associated with a strong interaction process that an intense plume emission and a conical shaped cavity are detected. The consistent behaviors for the acoustic emission, the plume emission and the ablated size in dependence on the delay make the acoustic signal detection a reliable method in monitoring the CPL-BK7 glass interaction process and estimating the ablation results.A hydrophone is used to detect the acoustic emission for the combined pulsed laser (CPL)-BK7 glass interaction. The CPL is composed of a nanosecond (ns) laser and a millisecond (ms) laser, which are separated with a certain period of time. Owing to the material defects affected mechanism, fluctuations are observed for the transmission time and the intensity of the acoustic emission during the ns laser interaction period. A weak and a strong acoustic emissions with spectrums dominated in the ranges of 10kHz∼60kHz and less than 8kHz, respectively, are detected during the remaining millisecond laser irradiation period. The two different behaviors of the acoustic emission are analyzed together with the evolution of the plume emission captured by the high speed camera during the laser irradiation and the ablated morphology on the sample. Results show that the high-frequency acoustic signal arises from a weak interaction process that a short lifetime plume emission and a shallow pit at the sample surface are ob...
登录
查看更多内容
影响因子：
1.9
作者：
L. Lamaignère;G. Dupuy;T. Donval;P. Grua;H. Bercegol
通讯作者：
L. Lamaignère;G. Dupuy;T. Donval;P. Grua;H. Bercegol
影响因子：
4.8
作者：
Cai, Yue;Cheung, N. H.
通讯作者：
Cheung, N. H.
影响因子：
1.9
作者：
E. Manikanta;L. Vinoth Kumar;C. Leela;P. Prem Kiran
通讯作者：
E. Manikanta;L. Vinoth Kumar;C. Leela;P. Prem Kiran
影响因子：
3.6
作者：
Yunxiang Pan;Xueming Lv;Hongchao Zhang;Jun Chen;B. Han;Z. Shen;Jian Lu;X. Ni
通讯作者：
Yunxiang Pan;Xueming Lv;Hongchao Zhang;Jun Chen;B. Han;Z. Shen;Jian Lu;X. Ni
影响因子：
3.6
作者：
Jiang, Lan;Liu, Pengjun;Lu, Yongfeng
通讯作者：
Lu, Yongfeng