Customized optical chirality of vortex structured light through state and degree-of-polarization control

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Forbes, Kayn A. ORCID: https://orcid.org/0000-0002-8884-3496 and Green, Dale ORCID: https://orcid.org/0000-0002-2549-0486 (2023) Customized optical chirality of vortex structured light through state and degree-of-polarization control. Physical Review A, 107 (6). ISSN 2469-9926

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Abstract

We show how both the ellipticity η and degree of polarization P influence the extraordinary optical chirality properties of nonparaxial vortex beams. We find that, in stark contrast to paraxial optics and nonvortex modes, extremely rich and tunable spatial distributions of optical chirality density can be produced by an optical vortex beam under tight focusing. We develop a theoretical description of how the optical chirality can be tailored for purpose by altering both the state η and degree of polarization P of the input vortex mode, along with the magnitude and sign of optical orbital angular momentum via the pseudoscalar topological charge l. We expect that the results will have a significant role in both producing alternative techniques and improving existing methods in chiral nano-optics and structured light photonics.

Item Type: Article
Uncontrolled Keywords: atomic and molecular physics, and optics ,/dk/atira/pure/subjectarea/asjc/3100/3107
Faculty \ School: Faculty of Science > School of Chemistry (former - to 2024)
UEA Research Groups: Faculty of Science > Research Groups > Quantum Matter
Faculty of Science > Research Groups > Numerical Simulation, Statistics & Data Science
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Depositing User: LivePure Connector
Date Deposited: 07 Jun 2023 11:30
Last Modified: 07 Nov 2024 12:46
URI: https://ueaeprints.uea.ac.uk/id/eprint/92306
DOI: 10.1103/PhysRevA.107.063504

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