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首页> 外文期刊>Optical and quantum electronics >Self-focusing of multi-Gaussian laser beams in nonlinear optical media as a Kepler's central force problem
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Self-focusing of multi-Gaussian laser beams in nonlinear optical media as a Kepler's central force problem

机译：非线性光学介质中多高斯激光束的自聚焦是开普勒中心力问题

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摘要

In this paper self-focusing of multi-Gaussian laser beam in nonlinear optical media has been investigated theoretically. Saturation of the optical nonlinearity has been incorporated through cubic-quintic model. Moment theory approach in W.K.B approximation has been invoked to find the numerical solution of nonlinear wave equation for the field of incident laser beam. Particularly the dynamical evolutions of the beam width of the laser beam with distance of propagation have been investigated in detail. It has been shown that the self-focusing of the laser beam resembles to Kepler's central force problem.
机译：本文对非线性光学介质中多高斯激光束的自聚焦进行了理论研究。光学非线性的饱和度已通过三次五次方模型纳入。调用了W.K.B近似的矩理论方法来寻找入射激光束场的非线性波动方程的数值解。特别地，已经详细研究了激光束的光束宽度随传播距离的动态变化。已经表明，激光束的自聚焦类似于开普勒的中心力问题。

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