Volume 16 Issue 03
Mar.  2004
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zhao hua jun, zhu qi hua, feng guo ying, et al. Compensation of nonlinear selffocusing in propagation of high power superGaussian beams[J]. High Power Laser and Particle Beams, 2004, 16.
Citation: zhao hua jun, zhu qi hua, feng guo ying, et al. Compensation of nonlinear selffocusing in propagation of high power superGaussian beams[J]. High Power Laser and Particle Beams, 2004, 16.

Compensation of nonlinear selffocusing in propagation of high power superGaussian beams

  • Publish Date: 2004-03-15
  • The basic theory of a beam passing through the nonlinear medium is analysed in this paper, and the process of a tenstep high power supperGaussion beam passing through the nonlinear medium is calculated with the FFT. A negative nonlinear refractive index material was used as the compensating medium to compare different compensation methods. Studies suggest compensation can decrease B integral along the beam direction in a nonlinear medium, and can cancel the selffocusing of beams greatly. It can also avoid the nonlinear increase on the edges of superGaussian beams effectively. The compensation after nonlinear medium was selected as the idea compensating methods.
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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