Bottom-up Analysis of Ro-Vibrational Helical Dichroism

Fuente: arXiv
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Autori principali: Hrast, Mateja, Koutentakis, Georgios M., Maslov, Mikhail, Lemeshko, Mikhail
Natura: Preprint
Pubblicazione: 2025
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author Hrast, Mateja
Koutentakis, Georgios M.
Maslov, Mikhail
Lemeshko, Mikhail
author_facet Hrast, Mateja
Koutentakis, Georgios M.
Maslov, Mikhail
Lemeshko, Mikhail
contents Helical dichroism (HD) is a proposed method for the resolution of molecular chirality, employing the orbital angular momentum (OAM) of light. Going beyond the conventional assumptions about HD, this work proposes a rigid theoretical framework for the analysis of the HD, based on molecular symmetries and rotational eigenstates. We derive the rotational selection rules, which clearly establish that HD only emerges from the spin-orbit coupling of light, even for beams without far-field OAM. Our findings refine the conditions for observing HD, shedding light on the outcome of prior experiments and guiding future designs for chiral sensing using structured light.
format Preprint
id arxiv_https___arxiv_org_abs_2505_16393
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Bottom-up Analysis of Ro-Vibrational Helical Dichroism
Hrast, Mateja
Koutentakis, Georgios M.
Maslov, Mikhail
Lemeshko, Mikhail
Atomic Physics
Atomic and Molecular Clusters
Chemical Physics
Optics
Helical dichroism (HD) is a proposed method for the resolution of molecular chirality, employing the orbital angular momentum (OAM) of light. Going beyond the conventional assumptions about HD, this work proposes a rigid theoretical framework for the analysis of the HD, based on molecular symmetries and rotational eigenstates. We derive the rotational selection rules, which clearly establish that HD only emerges from the spin-orbit coupling of light, even for beams without far-field OAM. Our findings refine the conditions for observing HD, shedding light on the outcome of prior experiments and guiding future designs for chiral sensing using structured light.
title Bottom-up Analysis of Ro-Vibrational Helical Dichroism
topic Atomic Physics
Atomic and Molecular Clusters
Chemical Physics
Optics
url https://arxiv.org/abs/2505.16393