非线性光脉冲的短距离传输
Short-distance propagation of nonlinear optical pulses
摘要：
本文从理论上描述了在均匀背景光强下，光脉冲在离焦非线性光学材料中传播的准一维横向扩展。对于短传播距离，脉冲可以通过Riemann方法在非色散近似下描述。理论结果与数值模拟结果吻合良好。
英文摘要：
We theoretically describe the quasi one-dimensional transverse spreading of a light pulse propagating in a defocusing nonlinear optical material in the presence of a uniform background light intensity. For short propagation distances the pulse can be described within a nondispersive approximation by means of Riemann's approach. The theoretical results are in excellent agreement with numerical simulations.
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