平移透镜对飞秒激光在熔融石英中成丝及超连续辐射的影响研究
首发时间:2018-03-23
摘要:在飞秒激光经透镜聚焦过程中引入离轴参量,研究引入不同离轴参量对熔融石英中成丝以及超连续辐射的影响。通过Zemax软件进行模拟,随着传输距离的变化,对比引入不同离轴参量下高斯光束横截面。在理论研究础上,实验研究了离轴参量对熔融石英体细丝长度,细丝起点,以及超连续辐射光谱的影响。并且通过分析在不同传输距离下细丝横截面,其结果与理论结果一致。
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Effect of lens deviation on the femtosecond filamentation and supercontinuum generation in fused silica
Abstract:Lens deviation are introduced in the process of femtosecond laser focusing, and the influence of lens deviation on filamentation and supercontinuum spectrum in the fused silica is studied. By using Zemax software, for the difference lens deviation, the development of the cross section of Gaussianbeam is simulated. Base on this study, the effects of the lens deviation on the onset and length of the filament as well as the supercontinuum spectrum are experimentally investigated. The reason is provided by analyzing the cross section of filamentation in different propagation distances which is in agreement qualitatively with the simulations.
Keywords: Filamentation Lens Translation Supercontinuum Generation
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平移透镜对飞秒激光在熔融石英中成丝及超连续辐射的影响研究
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