Search for Hermite-Gauss mode rotation in cholesteric liquid crystals | Zendy

W. Löffler | Zendy; M. P. van Exter | Zendy; G. W. ’t Hooft | Zendy; G. Nienhuis | Zendy; Dirk J. Broer | Zendy; J. P. Woerdman | Zendy

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Search for Hermite-Gauss mode rotation in cholesteric liquid crystals

Author(s) -

W. Löffler,

M. P. van Exter,

G. W. ’t Hooft,

G. Nienhuis,

Dirk J. Broer,

J. P. Woerdman

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.012978

Subject(s) - angular momentum , physics , angular momentum of light , orbital angular momentum of light , optics , angular momentum coupling , total angular momentum quantum number , rotation (mathematics) , spin (aerodynamics) , gauss , hermite polynomials , classical mechanics , quantum mechanics , geometry , mathematics , thermodynamics

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).

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