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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 14 — Jul. 4, 2011
  • pp: 12978–12983

Search for Hermite-Gauss mode rotation in cholesteric liquid crystals

W. Löffler, M. P. van Exter, G. W. ’t Hooft, G. Nienhuis, D. J. Broer, and J. P. Woerdman  »View Author Affiliations

Optics Express, Vol. 19, Issue 14, pp. 12978-12983 (2011)

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In theory, there are analogous transformations of light’s spin and orbital angular momentum [Allen and Padgett, J. Mod. Opt. 54, 487 (2007)]; however, none have been observed experimentally yet. In particular, it is unknown if there exists for the orbital angular momentum of light an effect analogous to the spin angular momentum-based optical rotation; this would manifest itself as a rotation of the corresponding Hermite-Gauss mode. Here we report an experimental search for this effect in a cholesteric liquid crystal polymer, using strongly focussed, spin-orbit coupled light. We find that the relative phase velocities of the orbital modes constituting the Hermite-Gauss mode agree to within 10−5.

© 2011 OSA

OCIS Codes
(030.4070) Coherence and statistical optics : Modes
(160.1585) Materials : Chiral media
(350.4238) Other areas of optics : Nanophotonics and photonic crystals

ToC Category:

Original Manuscript: April 13, 2011
Revised Manuscript: May 27, 2011
Manuscript Accepted: June 2, 2011
Published: June 21, 2011

W. Löffler, M. P. van Exter, G. W. ’t Hooft, G. Nienhuis, D. J. Broer, and J. P. Woerdman, "Search for Hermite-Gauss mode rotation in cholesteric liquid crystals," Opt. Express 19, 12978-12983 (2011)

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