We analyze the propagation of self-trapped optical beams close to the Fréedericksz threshold in nematic liquid crystals. Accounting for power-dependent changes in walk-off due to the all-optical response, we demonstrate that light beams can switch from positive to negative refraction according to the excitation.

Alberucci, A., Jisha, C.P., & Assanto, G. (2015). Nonlinear negative refraction in reorientational soft matter. PHYSICAL REVIEW A, 92(3) [10.1103/PhysRevA.92.033835].

Nonlinear negative refraction in reorientational soft matter

ALBERUCCI, ALESSANDRO;ASSANTO, GAETANO
2015

Abstract

We analyze the propagation of self-trapped optical beams close to the Fréedericksz threshold in nematic liquid crystals. Accounting for power-dependent changes in walk-off due to the all-optical response, we demonstrate that light beams can switch from positive to negative refraction according to the excitation.
Alberucci, A., Jisha, C.P., & Assanto, G. (2015). Nonlinear negative refraction in reorientational soft matter. PHYSICAL REVIEW A, 92(3) [10.1103/PhysRevA.92.033835].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11590/317768
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