Refractive index sensing using analytical calculation of angular momentum sidebands of a Laguerre Gaussian beam reflected from a plasmonic structure

Abstract When a Laguerre Gaussian beam carrying orbital angular momentum (OAM) with a specific topological charge (TC) is incident onto an interface, the reflected beam will be a superposition of different OAM states. In this study, we analytically calculate the OAM spectrum of the reflected beam fr...

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Bibliographic Details
Main Authors: Mojtaba Baniasadi, Abbas Ghasempour Ardakani
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-06875-0
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