Journal
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Volume 302, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jqsrt.2023.108565
Keywords
Mie theory; Lasers; Generalized Lorenz-Mie theory; Light scattering
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The Ince-Gaussian beams are included in the framework of the generalized Lorenz-Mie theory through their expansions in terms of Laguerre-Gaussian beams. The beam shape coefficients are derived based on the expressions of Laguerre-Gaussian beam shape coefficients. This allows for a more straightforward computation of the coefficients and an analysis of the implications of the finite series method in the context of the GLMT framework.
The Ince-Gaussian beams (IGBs) are brought under the formalism of the generalized Lorenz-Mie theory (GLMT) through their expansions in terms of Laguerre-Gaussian beams (LGBs). The IG beam shape coeffi-cients (BSCs) are here derived based on the expressions of LG BSCs given by the finite series method. We then analyze how such relationships between LG and IG modes are translated to the domain of BSCs. This avoids complications that arise when computing said BSCs through other methods such as quadratures. Further ahead, the IG electric fields are reconstructed through the finite series BSCs and are then com-pared to their respective paraxial expressions. Through these results, we are able to make an in-depth analysis of the implications of the finite series method when translating more complex paraxial modes into the framework of the GLMT.(c) 2023 Elsevier Ltd. All rights reserved.
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