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飞秒激光烧蚀石英微孔的时间分辨阴影成像

Time-Resolved Shadowgraphic Imaging of Femtosecond Laser Ablated Micro-Holes in Silica Glass

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摘要

建立了基于飞秒激光抽运-探测原理的时间分辨阴影成像平台,直接获取了飞秒激光烧蚀石英微孔的超快过程图像。在不同能量密?#21462;?#26102;间延迟、脉冲数量条件下,观察到随时间延迟变化的等离子体通?#28010;?#36864;、冲击波膨胀和微孔伸长现象。实验结果表明,所提系统有助于飞秒激光烧蚀诱导?#35813;?#20171;质内部微纳结构的原位观察。

Abstract

A time-resolved shadowgraphic imaging system based on femtosecond laser pump and probe is established for directly imaging the ultrafast process of femtosecond laser ablating of micro-holes in silica glass. The time-delay dependent phenomena of plasma channel decay, shock wave expansion, and micro-hole stretch are observed when the energy density, time-delay, and pulse number change. The experimental results show that the proposed system is very efficient for the in situ observation of the micro-nanostructures in transparent media induced by femtosecond laser ablation.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:V261.8

DOI:10.3788/cjl201946.0508020

所属栏目:“超快激光非线性光学”专题

基金项目:国家自然科学基金(11872058)、超光滑表面无损检测安徽省重点实验室开放课题(CGHBMWSJC06)

收稿日期:2018-10-26

修改稿日期:2019-01-11

网络出版日期:2019-02-25

作者单位    点击查看

?#33322;?/b>:四川大学电子信息学院, 四川 成都 610065
张彬:四川大学电子信息学院, 四川 成都 610065
刘晖?#20309;?#23433;工程大学机电工程学院, 陕西 西安 710048
张航:中国工程物理研究院流体物理研究所, 四川 绵阳 621900

联系人作者:张彬([email protected])

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引用该论文

Wei Jian,Zhang Bin,Liu Hui,Zhang Hang. Time-Resolved Shadowgraphic Imaging of Femtosecond Laser Ablated Micro-Holes in Silica Glass[J]. Chinese Journal of Lasers, 2019, 46(5): 0508020

?#33322;?张彬,刘晖,张航. 飞秒激光烧蚀石英微孔的时间分辨阴影成像[J]. 中国激光, 2019, 46(5): 0508020

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