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, J. P. Woerdman

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Abstract

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.

Original languageEnglish
Pages (from-to)12978-12983
Number of pages6
JournalOptics Express
Volume19
Issue number14
DOIs
Publication statusPublished - 4 Jul 2011

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angular momentum
liquid crystals
orbitals
phase velocity
orbits
polymers

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Löffler, W., Van Exter, M. P., 't Hooft, G. W., Nienhuis, G., Broer, D. J., & Woerdman, J. P. (2011). Search for Hermite-Gauss mode rotation in cholesteric liquid crystals. Optics Express, 19(14), 12978-12983. https://doi.org/10.1364/OE.19.012978
Löffler, W. ; Van Exter, M. P. ; 't Hooft, G. W. ; Nienhuis, G. ; Broer, D. J. ; Woerdman, J. P. / Search for Hermite-Gauss mode rotation in cholesteric liquid crystals. In: Optics Express. 2011 ; Vol. 19, No. 14. pp. 12978-12983.
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Löffler, W, Van Exter, MP, 't Hooft, GW, Nienhuis, G, Broer, DJ & Woerdman, JP 2011, 'Search for Hermite-Gauss mode rotation in cholesteric liquid crystals', Optics Express, vol. 19, no. 14, pp. 12978-12983. https://doi.org/10.1364/OE.19.012978

Search for Hermite-Gauss mode rotation in cholesteric liquid crystals. / Löffler, W.; Van Exter, M. P.; 't Hooft, G. W.; Nienhuis, G.; Broer, D. J.; Woerdman, J. P.

In: Optics Express, Vol. 19, No. 14, 04.07.2011, p. 12978-12983.

Research output: Contribution to journalArticleAcademicpeer-review

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Löffler W, Van Exter MP, 't Hooft GW, Nienhuis G, Broer DJ, Woerdman JP. Search for Hermite-Gauss mode rotation in cholesteric liquid crystals. Optics Express. 2011 Jul 4;19(14):12978-12983. https://doi.org/10.1364/OE.19.012978