Astigmatic Structured Laguerre-Gaussian Beams: Orbital Angular Momentum and Its Transformation

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发表日期：

2024年12月11日

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M. V. Bretsko,
S. I. Khalilov,
S. I. Yakubov,
D. V. Maksimov,
A. V. Volyar,
Ya. E. Akimova

摘要

Abstract—

This paper presents a study of astigmatic structured Laguerre-Gaussian beams (asLG) and their orbital angular momentum (OAM). The complex amplitude of the asLG beam is obtained, which takes into account the distance along the z-axis after the cylindrical lens, as well as the angle of inclination of the cylindrical lens. An expression for the OAM is obtained that depends only on the Hermite-Gaussian mode amplitudes. Computer modeling has been carried out, which is in good agreement with experiment.