Analysis of beam propagation in thick nonlinear media
Jianguo TianThe authors are with the Department of Physics, Nankai University, Tianjin 300071,
ChinaWei-Ping ZangThe authors are with the Department of Physics, Nankai University, Tianjin 300071,
ChinaCun-zhou ZhangThe authors are with the Department of Physics, Nankai University, Tianjin 300071,
ChinaGuangyin ZhangThe authors are with the Department of Physics, Nankai University, Tianjin 300071,
China
1995en
ABI
Аннотация
We present a theoretical analysis of beam propagation in thick nonlinear media by using the Gaussian decomposition method and considering a thick medium as a stack of thin media. Simple analytic solutions of Z-scan characteristics and optical limiting with thick nonlinear media are obtained. Comparisons of these results with those obtained by use of a distributed-lens model and Gaussian-Laguerre mode decomposition are made. Good agreement is obtained with a distributed-lens model.
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