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Propagation propertiesof a novel generalized flattened Hermite-cosh-Gaussian light beam

机译:一种新型广义扁平的Hermite-CoSh-Gaussian光束的传播特性

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摘要

In this paper, we have introduced a general formula of a new laser beam with a nearly Flat-tened-top profile. The propagation properties of this beam, called Generalized Flattened Hermite-cosh-Gaussian (GFHChG) beam are studied in detail. Based on the Huygens-Fresnel integral, an analytical expression of the intensity distribution for GFHChG passing through a paraxial ABCD optical system is developed. Several particular cases such as the propagation of the flattened Gaussian beam, the cosh-Gaussian beam, the higher and squared cosh-Gaussian beam and the Hermite-cosh-Gaussian beam are deduced from our result. Numerical simulations are also given in free space and through a circular thin lens in a free space to study the comportment of this beam during propagation.
机译:在本文中,我们引入了一种具有近乎平坦的顶部轮廓的新激光束的通式。详细地研究了该光束的传播特性,称为广义扁平的Hermite-CoSH-Gaussian(GFHCHG)光束。基于Huygens - Fresnel积分,开发了通过段ABCD光学系统的GFHCHG强度分布的分析表达。从我们的结果推导出几种特定情况,例如扁平高斯梁,Cosh-Gaussian梁,较高和平方的Cosh-Gaussian梁和Hermite-Cosh-Gaussian梁的传播。数值模拟也在自由空间中和通过自由空间中的圆形薄透镜给出,以研究传播期间该光束的展位。

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