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Propagation of vector fractional charge Laguerre-Gaussian light beams in the thermally nonlinear moving atmosphere

机译:矢量分数电荷拉盖尔-高斯光束在热非线性移动气氛中的传播

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摘要

We study numerically the mutual propagation of two fractional topological charge Laguerre-Gaussian (LG) light beams in the moving atmosphere with the thermal nonlinearity. The fractional charge beam is constructed as a weighted superposition of a finite number of the standard LG modes with integer charges. Numerical simulations demonstrate an enhanced stability of the cross-section intensity distribution of the fractional charge LG beams against the thermal blooming, as compared with the case of integer charge beams. The dominant mechanism of such a stability results from the multimodal structure of the fractional charge beams.
机译:我们用热非线性数值研究了两个分数拓扑电荷Laguerre-Gaussian(LG)光束在移动气氛中的相互传播。分数电荷束被构造为有限数量的带有整数电荷的标准LG模式的加权叠加。数值模拟表明,与整数电荷束相比,分数电荷LG束的截面强度分布对热起霜的稳定性更高。这种稳定性的主要机制是由分数电荷束的多峰结构引起的。

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