Effect of aberrations on the beam quality factor of Hermite-Gauss beams

被引：1

作者：

Mphuthi, Nokwazi ^{[1
]}

Bell, Teboho ^{[1
]}

Mabena, Chemist M. ^{[1
]}

机构：

[1] CSIR Photon Ctr, Meiring Naude Rd, Pretoria, South Africa

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 24期

基金：

新加坡国家研究基金会;

关键词：

ORBITAL ANGULAR-MOMENTUM; OPTICAL TRAP; LASER; MODES; GENERATION; PROPAGATION; ACCELERATION; DEGRADATION;

D O I：

10.1364/OE.502925

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The effect of aberrations on the beam quality factor (M2) of Hermite-Gauss (HG) beams is examined. Using the method of moments, we derive closed-form analytical expressions of M2 due to astigmatism and spherical aberration. Our analysis reveals that the radius of the HG beams plays a significant role in determining the effect of the aberrations on M2. For each aberration, we establish a critical width that separates the region where M2 changes infinitesimally from the region where it changes sharply. The analytical results are validated through numerical simulations.

引用

页码：39379 / 39395

页数：17

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