| 液体中光击穿阈值的研究 |
| |
| 引用本文： | 高立民,曹辉,何温,韩辉云,许志强,史瑞民.液体中光击穿阈值的研究[J].光子学报,2012,41(8):946-948. |
| |
| 作者姓名： | 高立民 曹辉 何温 韩辉云 许志强 史瑞民 |
| |
| 作者单位： | 1. 河北师范大学汇华学院,石家庄,050091
2. 陕西师范大学应用声学研究所,西安,710062 |
| |
| 基金项目： | 国家自然科学基金(No.11074159)、Met-Cars的结构与磁性研究项目(No.20110401)、物理教学论实验课的教育教学改革项目(No.201019)和实验教学管理网络平台的构建项目(No.20120401)资助 |
| |
| 摘 要： | 从等离子体中自由电子密度速率方程出发,考虑到脉冲激光在聚焦区域的特征以及液体中光击穿的实验情况,提出了等离子体椭球模型.通过该模型的建立,对自由电子密度速率方程中电子扩散速率进行了修正,在理论上得到了光击穿的阈值.结果表明,等离子体椭球模型计算出水的击穿阈值更符合实验情况.
|
| 关 键 词： | 光击穿 等离子体椭球 阈值 |
| 收稿时间： | 2012/3/5 |
Optical Breakdown Threshold in Liquid |
| |
| GAO Li-min
,
CAO Hui
,
HE Wen
,
HAN Hui-yun
,
XU Zhi-qiang
,
SHI Rui-min.Optical Breakdown Threshold in Liquid[J].Acta Photonica Sinica,2012,41(8):946-948. |
| |
| Authors: | GAO Li-min CAO Hui HE Wen HAN Hui-yun XU Zhi-qiang SHI Rui-min |
| |
| Institution: | 1(1 Huihua College,Hebei Normal University,Shijiazhuang050091,China)(2 Applied Acoustics Institute,Shaanxi Normal University,Xi′an 710062,China) |
| |
| Abstract: | Based on the free electron density rate equation, a plasma ellipsoid model was proposed by considering the characteristic of shaping in the focal region. Theoretical breakdown thresholds calculated by plasma ellipsoid model with modifying the electron diffusion rate were presented under the condition of shorter laser pulses. The results show that the breakdown thresholds of water calculated by plasma elliptical model are better in agreement with experimental result than other models. |
| |
| Keywords: | Optical breakdown Plasma ellipsoid Breakdown threshold |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
