Laser optical separation of chiral molecules

Bradshaw, David S. ORCID: https://orcid.org/0000-0002-6458-432X and Andrews, David L. (2015) Laser optical separation of chiral molecules. Optics Letters, 40 (4). pp. 677-680. ISSN 0146-9592

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Abstract

The optical trapping of molecules with an off-resonant laser beam involves a forward-Rayleigh scattering mechanism. It is shown that discriminatory effects arise on irradiating chiral molecules with circularly polarized light; the complete representation requires ensemble-weighted averaging to account for the influence of the trapping beam on the distribution of molecular orientations. Results of general application enable comparisons to be drawn between the results for two limits of the input laser intensity. It emerges that, in a racemic mixture, there is a differential driving force whose effect, at high laser intensities, is to produce differing local concentrations of the two enantiomers.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Chemistry
UEA Research Groups:	Faculty of Science > Research Groups > Physical and Analytical Chemistry (former - to 2017) Faculty of Science > Research Groups > Chemistry of Light and Energy Faculty of Science > Research Groups > Centre for Photonics and Quantum Science
Depositing User:	Pure Connector
Date Deposited:	16 Feb 2015 12:16
Last Modified:	09 Feb 2023 13:40
URI:	https://ueaeprints.uea.ac.uk/id/eprint/52243
DOI:	10.1364/OL.40.000677

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