| 强激光圆对称超高斯光束的自聚焦环 |
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| 引用本文： | 唐永林,景峰,张小民,陈建国,李大义.强激光圆对称超高斯光束的自聚焦环[J].强激光与粒子束,2000,12(8). |
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| 作者姓名： | 唐永林 景峰 张小民 陈建国 李大义 |
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| 作者单位： | １.中国工程物理研究院高温高密度等离子体物理国家重点实验室，四川 绵阳919-988信箱 621900；2. 四川大学光电系，四川 成都 610064 |
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| 摘 要： | 通过数值求解非线性薛定谔方程，详细描述了圆对称超高斯光束在Nd:glass介质中传输形成的自聚焦环。初始光束受到扰动后，环就会分裂形成强烈的细光束，显示出自聚焦环的不稳定性，细光束具有很大的峰值光强，将对介质造成极大的危害。
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| 关 键 词： | 非线性薛定谔方程 自聚焦环 超高斯光束 |
| 收稿时间： | 1900-01-01; |
Self-focusing ring of circle symmetric super-Gaussian beam |
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| tang yong-lin,jing feng,zhang xiao-ming,chen jian-guo,li da-yi.Self-focusing ring of circle symmetric super-Gaussian beam[J].High Power Laser and Particle Beams,2000,12(8). |
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| Authors: | tang yong-lin jing feng zhang xiao-ming chen jian-guo li da-yi |
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| Institution: | National Key Laboratory of Laser Fusion, CAEP, P.O.Box919-988, Mianyang 621900 China； ２． Opto-electronics Department, Sichuan University, Chengdu 610064, China |
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| Abstract: | Self-focusing rings of circle symmetric super-Gaussian laser beam (CSSGLB) with high intensity travelling in Nd:glass medium, are described in detail with numerically solution to the nonlinear Schödinger equation. When a CSSGLB with initial perturbations travelling in this medium, the self-focusing rings are to be broken up and form high intense filaments. This phenomenon showed the instability of the self-focusing rings .The high intensity filaments may destroy the medium． |
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| Keywords: | dinger equation self-focusing ring super-Gaussian beam |
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