Beam propagation factor of Hollow higher-order Cosh-Gaussian beams

被引：0
|
作者：
Faroq Saad
Ahmed Abdulrab Ali Ebrahim
Abdelmajid Belafhal
机构：
[1] Ministry of Education,High Institute for Training & Qualifying Teachers
[2] Ministry of Education,Faculty of Engineering
[3] Al-Janad University for Science & Technology,Laboratory LPNAMME, Laser Physics Group, Department of Physics, Faculty of Sciences
[4] Chouaïb Doukkali University,undefined
来源：
Optical and Quantum Electronics | 2022年 / 54卷
关键词：
Hollow higher-order Cosh-Gaussian; Second-order moment; M; -factor;
D O I：
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中图分类号：
学科分类号：
摘要：
Based on the second-order moments definition, the beam propagation factor of a new mathematical model of Hollow higher-order Cosh-Gaussian (HhCG) beams is investigated. Analytical formula for the M2-factor of HhCG beams is derived, which depends on the hollowness parameter l, the beam order n, the parameter of the cosh part δ and the beam waist ω0. The influences of these parameters are illustrated with numerical examples. The result provides more general characteristics because the higher-order Cosh-Gaussian, Cosh-Gaussian and Gaussian beams are obtained as specials cases of HhCG beams.
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