Pronounced Focusing of Hermite Cosh Gaussian Beam for Mode Index M=0 in Plasmas

Numerical Calculation of Coupling Efficiency for an Elegant Hermite-Cosh-Gaussian Beams

The ABCD matrix method is used to simplifying the theoretical coupling efficiency calculation of Elegant Hermite-Cosh-Gaussian (EHChG) laser beams to a Single Mode Fiber (SMF) with a quadric lens formed on the tip. The integrals of coupling efficiency relation are calculated numerically by Boole method. Meanwhile, the structure parameters of surface-lensed fiber are optimized in numerical simul...

Beam quality changes in Hermite-Gauss mode fields propagating through Gaussian apertures.

The beam quality behavior of Hermite-Gauss laser modes propagating through Gaussian apertures is analyzed.

Efficient formation of a high-quality beam from a pure high-order Hermite-Gaussian mode.

We present a relatively simple method for efficiently transforming a single high-order mode into a nearly Gaussian beam of much higher quality. The method is based on dividing the mode into equal parts that are then combined coherently. We illustrate the method by transforming a Hermite-Gaussian (1, 0) mode with M(x)(2)=3 into a nearly Gaussian beam with M(x)(2)=1. 045 . Experimental results ar...

Scintillation characteristics of cosh-Gaussian beams.

By using the generalized beam formulation, the scintillation index is derived and evaluated for cosh-Gaussian beams in a turbulent atmosphere. Comparisons are made to cos-Gaussian and Gaussian beam scintillations. The variations of scintillations against propagation length at different values of displacement and focusing parameters are examined. The dependence of scintillations on source size a...

Scattering of a Hermite-gaussian Beam by a Chiral Sphere