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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/193663
- Optical vortices from liquid crystal droplets
- Brasselet, Etienne; Murazawa, Naoki; Misawa, Hiroaki; Juodkazis, Saulius
- We report on the generation of mono- and polychromatic optical phase singularities from micron-sized birefringent droplets. This is done experimentally by using liquid crystal droplets whose three dimensional architecture of the optical axis is controlled within the bulk by surfactant agents. Because of its microscopic size these optical vortex generators are optically trapped and manipulated at will, thus realizing a robust self-aligned micro-optical device for orbital angular momentum conversion. Experimental observations are supported by a simple model of optical spin-orbit coupling in uniaxial dielectrics that emphasizes the prominent role of the transverse optical anisotropy with respect to the beam propagation direction.
- Publication type
- Journal article
- Physical Review Letters, Vol. 103, no. 10 (Sep 2009), article no. 103903
- Publication year
- FOR Code(s)
- 01 Mathematical Sciences; 02 Physical Sciences; 09 Engineering
- Liquid crystal droplets; Monochromatic light; Optical trapping; Optical vortices; Polychromatic light
- American Physical Society
- Publisher URL
- Copyright © 2009 The American Physical Society.
- Peer reviewed