超短脉冲激光与介质薄膜相互作用的解析研究  

Analytical Research of Ultra-short Laser Pulses Interacting with Dielectric Materials

作　　者：赵刚[1] 郝秋龙[1] 陈建国[1] 齐文宗[1] 

机构地区：[1]四川大学电子信息学院,四川成都610064

出　　处：《半导体光电》2008年第2期208-211,216,共5页Semiconductor Optoelectronics

摘　　要：在对速率方程求解的基础上,得到了超短脉冲激光辐照下介质表面电子密度演化的解析表达式;并导出了脉冲通量密度与破坏脉宽阈值的解析关系式;得到了介质损伤阈值与脉宽之间的关系;并考查了初始电子密度对损伤阈值的影响。The analytical expression for the electron density induced by a hyperbolic secant ultra-short laser pulse was deduced, and an explicit expression for the threshold pulse width in terms of the fluence density was derived, and studied was the damage threshold fluence with different initial electron density.

关 键 词：超短脉冲激光 电子密度 破坏阈值 激光物理 解析分析 

分 类 号：TN248.35[电子电信—物理电子学]