用三种方法计算拉盖尔-高斯光束的标量光束形状系数及其关系

IF 2.3 3区物理与天体物理 Q2 OPTICS

Journal of Quantitative Spectroscopy & Radiative Transfer Pub Date : 2025-06-03 DOI:10.1016/j.jqsrt.2025.109548

Mengyang Wang, Siqi Tang, Jianqi Shen

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引用次数: 0

摘要

光束形状系数的计算是分析拉盖尔-高斯光束与球形粒子相互作用的关键。本文利用有限级数、径向正交和角谱分解方法推导了拉盖尔-高斯光束的标量BSCs。探讨了用这些方法获得的BSCs之间的关系。研究发现，在近轴条件下，BSCs对LGB的表达可以相互转化。该研究揭示了这些方法之间的相互联系，并可能加深对lgb球形波扩展中的波束重构的理解。

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Evaluating the scalar beam shape coefficients of Laguerre-Gauss beam using three methods and their relation

Calculating the beam shape coefficients (BSCs) is crucial for analyzing the interaction between the Laguerre-Gaussian beams and the spherical particles. In this paper, the scalar BSCs of the Laguerre-Gaussian beam (LGB) are derived by using the finite series, the radial quadrature, and the angular spectrum decomposition methods. The relationships between the BSCs obtained with these methods are explored. It is found that under the paraxial conditions the expressions of the BSCs for the LGB may be transformed to each other. The study reveals the interconnection between these methods and may deepen the understanding of the beam-remodeling in the spherical wave expansion of the LGBs.

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来源期刊

Journal of Quantitative Spectroscopy & Radiative Transfer 物理-光谱学

CiteScore

5.30

自引率

21.70%

发文量

273

审稿时长

58 days

期刊介绍： Papers with the following subject areas are suitable for publication in the Journal of Quantitative Spectroscopy and Radiative Transfer: - Theoretical and experimental aspects of the spectra of atoms, molecules, ions, and plasmas. - Spectral lineshape studies including models and computational algorithms. - Atmospheric spectroscopy. - Theoretical and experimental aspects of light scattering. - Application of light scattering in particle characterization and remote sensing. - Application of light scattering in biological sciences and medicine. - Radiative transfer in absorbing, emitting, and scattering media. - Radiative transfer in stochastic media.