Orbital Angular Momentum of Structured LG Beams after Astigmatic Transformation

被引：2

作者：

Bretsko, M. V. ^{[1
]}

Akimova, Ya. E. ^{[1
]}

Volyar, A. V. ^{[1
]}

Khalilov, S. I. ^{[1
]}

Egorov, Yu. A. ^{[1
]}

Ivakhnenko, A. O. ^{[1
]}

机构：

[1] Vernadsky Crimean Fed Univ, Phys & Technol Inst, Simferopol 295007, Crimea, Russia

来源：

OPTICAL MEMORY AND NEURAL NETWORKS | 2023年 / 32卷 / SUPPL 1期

关键词：

structured Laguerre-Gaussian beams; astigmatic transform; orbital angular momentum; TOPOLOGICAL CHARGE; OPTICAL VORTICES;

D O I：

10.3103/S1060992X23050041

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper investigates structured Laguerre-Gaussian (sLG) beams with two control parameters under an astigmatic transformation. The presented beams are a structurally stable superposition of the standard Laguerre Gaussian mode and the hybrid Hermite-Laguerre-Gaussian mode. By changing the phase parameter of such beam, one can obtain wave solutions that are stable under simple astigmatism. We also found sharp spikes and dips in orbital angular momentum (OAM) in astigmatic sLG beams in the region where orbital angular momentum vanishes. The height and depth of bursts and dips significantly exceed the maximum and minimum of OAM values in ordinary sLG beams for a given phase parameter.

引用

页码：S75 / S83

页数：9

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