| 单个飞秒激光作用下熔融石英的微爆阈值研究 |
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| 引用本文： | 马琳,石顺祥,程光华,刘青,赵卫,陈国夫.单个飞秒激光作用下熔融石英的微爆阈值研究[J].光子学报,2007,36(6):969-971. |
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| 作者姓名： | 马琳 石顺祥 程光华 刘青 赵卫 陈国夫 |
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| 作者单位： | 1. 西安电子科技大学,技术物理学院501室,西安,710071
2. 中国科学院西安光学精密机械研究所,瞬态光学技术国家重点实验室,西安,710068 |
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| 基金项目： | 中国科学院知识创新基金(40001043)资助 |
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| 摘 要： | 对飞秒激光脉冲在透明介质中产生微爆的物理机制进行了研究,比较了长短激光脉冲的光击穿机制,基于Fokker-Planck方程建立了飞秒激光微爆模型,给出了飞秒激光脉冲在透明介质中产生微爆的阈值解析表达式.针对飞秒激光脉冲在熔石英介质中的微爆阈值进行了计算,得到的结果与实验结果基本相符.
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| 关 键 词： | 飞秒激光脉冲 透明介质 熔融石英 微爆阈值 |
| 文章编号： | 1004-4213（2007）06-0969-3 |
| 收稿时间： | 2006-03-06 |
| 修稿时间： | 2006-03-06 |
Micro-explosions Threshold Induced by a Single Focused Femtosecond Laser Pulse in Fused Silica |
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| MA Lin,SHI Shun-xiang,CHENG Guang-hua,LIU Qing,ZHAO Wei,CHEN Guo-fu.Micro-explosions Threshold Induced by a Single Focused Femtosecond Laser Pulse in Fused Silica[J].Acta Photonica Sinica,2007,36(6):969-971. |
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| Authors: | MA Lin SHI Shun-xiang CHENG Guang-hua LIU Qing ZHAO Wei CHEN Guo-fu |
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| Abstract: | In this letter,micro-explosions mechanisms induced by a single focused femtosecond laser pulse are investigated.Optical breakdown mechanisms of long laser pulse and short laser pulse are compared.The analytic expressions of micro-explosions threshold are derived. Based on this formula,micro-explosions threshold induced by a single focused femtosecond laser pulse in fused silica is calculated.The calculated results agree with the experimental data well. |
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| Keywords: | Femtosecond laser pulse Transparent material Fused silica Micro-explosions threshold |
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