飞秒激光诱导水光学击穿过程的数值模拟和实验研究的中期报告.docx

飞秒激光诱导水光学击穿过程的数值模拟和实验研究的中期报告 摘要： 本文对飞秒激光诱导水光学击穿过程的数值模拟和实验研究的中期进展进行了报告。首先，我们介绍了实验装置的搭建和光学系统的构建，包括激光源、扫描镜、聚焦透镜等。然后，我们对数值模拟方法进行了分析和比较，选择了能够准确模拟飞秒激光与水相互作用的方法，并进行了参数的优化。接着，我们描述了实验数据的采集和分析方法，并给出了一些初步的实验结果，包括水的光学特性和激光诱导击穿的临界功率密度。最后，我们对下一步工作进行了讨论和展望，包括进一步完善模拟方法、提高实验精度和拓展研究范围等。 关键词： 飞秒激光；水光学；击穿；数值模拟；实验研究 Abstract: This report presents the mid-term progress of numerical simulation and experimental research on femtosecond laser-induced water optical breakdown. Firstly, we introduced the experimental setup and optical system, including laser source, scanning mirror, focusing lens, etc. Then, we analyzed and compared different numerical simulation methods, selected the one that could accurately simulate the interaction between femtosecond laser and water, and optimized the parameters. We described the data acquisition and analysis methods of the experiments, and provided some preliminary experimental results, including the optical properties of water and the critical power density of laser-induced breakdown. Finally, we discussed and prospect the next step work, including further improvement of simulation methods, enhancement of experimental accuracy, and expansion of research scope, etc. Keywords: Femtosecond laser; Water optics; Breakdown; Numerical simulation; Experimental research.