Optical path control of solitary waves in dye-doped nematic liquid crystals

Gaetano Assanto, Benjamin D. Skuse, Noel Frederick Smyth

Abstract


The light-induced steering of spatial optical solitary waves in dye-doped nematic liquid crystals is analyzed. Shining a control beam through the cell results in a boundary mediated change in the orientation of the molecular director, thereby a perturbation in the refractive index of the medium. This re-orientational effect can optically steer spatial solitary waves propagating in an orthogonal plane within the liquid crystal layer. The equations governing this steering are solved using a Lagrangian formulation, resulting in modulation equations for the self-trapped beam path. Very good agreement is obtained between solutions of the modulation equations and numerical solutions of the full governing equations.

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Photonics Letters of Poland - A Publication of the Photonics Society of Poland
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ISSN: 2080-2242