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arXiv 2403.04048physics.optics
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结构光自相位调制中的径向-角向耦合

Radial-angular coupling in self phase modulation with structured light

M. Gil de Oliveira, L. J. Pereira, A. S. Santos, K. Dechoum, A. Bramati, A. Z. Khoury

AI总结:

本研究探究非线性克尔介质中光学涡旋自相位调制的演化,发现强度相关相位演化耦合其角向与径向自由度并产生新径向模式,短程传播下微扰法的预测经数值模拟验证成立。

摘要:

本研究对在非线性克尔介质中发生自相位调制的光学涡旋的演化过程展开探究。强度相关的相位演化会耦合输入涡旋的角向与径向自由度,催生丰富的动力学行为,产生新的径向模式。在短传播距离范围内,微扰方法可很好地描述这一动力学过程,预测会生成径向数介于0到涡旋拓扑荷绝对值之间的模式。该预测已通过非线性传播方程的数值模拟得到验证。

英文摘要:

In this work we study the evolution of an optical vortex undergoing self phase modulation inside a nonlinear Kerr medium. The intensity dependent phase evolution couples the angular and radial degrees of freedom of the input vortex, giving rise to a rich dynamics where new radial modes are created. In the short propagation range, this dynamics is well described by a perturbative approach, predicting the generation of modes with radial numbers between zero and the absolute value of the vortex topological charge. This prediction is confirmed by numerical simulations of the nonlinear propagation equation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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