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Proceedings Paper

Searching for the helical-gradient force on chiral molecules
Author(s): J. A. Jones; B. Regan; J. Painter; J. Mills; I. Dutta; B. Khajavi; E. J. Galvez
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Paper Abstract

We investigate a force that has been predicted to discriminate molecules by their chirality when they are in the presence of an optical field with a polarization-helicity gradient. We investigate several experimental geometries for observing evidence of this force via enantiometer separation in racemic mixtures. We do this with singular-optical beams carrying a polarization helicity gradient across their transverse mode. Molecular diffusion and the dipole force – an intensity-gradient force – have so far precluded measurements of this force.

Paper Details

Date Published: 27 February 2017
PDF: 9 pages
Proc. SPIE 10120, Complex Light and Optical Forces XI, 101200M (27 February 2017); doi: 10.1117/12.2253268
Show Author Affiliations
J. A. Jones, Colgate Univ. (United States)
B. Regan, Colgate Univ. (United States)
J. Painter, Colgate Univ. (United States)
J. Mills, Colgate Univ. (United States)
I. Dutta, Colgate Univ. (United States)
B. Khajavi, Colgate Univ. (United States)
E. J. Galvez, Colgate Univ. (United States)

Published in SPIE Proceedings Vol. 10120:
Complex Light and Optical Forces XI
David L. Andrews; Enrique J. Galvez; Jesper Glückstad, Editor(s)

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