The propagation of solitary waves in nematic liquid crystals in the presence of localized nonuniformities is studied. These nonuniformities can be caused by external electric fields, other light beams, or any other mechanism which results in a modified director orientation in a localized region of the liquid-crystal cell. The net effect is that the solitary wave undergoes refraction and trajectory bending. A general modulation theory for this refraction is developed, and particular cases of circular, elliptical, and rectangular perturbations are considered. The results are found to be in excellent agreement with numerical solutions.

Assanto, G., Minzoni, A.a., Smyth, N.f., Worthy, A.l. (2010). Refraction of nonlinear beams by localized refractive index changes in nematic liquid crystals. PHYSICAL REVIEW A, 82(5) [10.1103/PhysRevA.82.053843].

Refraction of nonlinear beams by localized refractive index changes in nematic liquid crystals

ASSANTO, GAETANO;
2010-01-01

Abstract

The propagation of solitary waves in nematic liquid crystals in the presence of localized nonuniformities is studied. These nonuniformities can be caused by external electric fields, other light beams, or any other mechanism which results in a modified director orientation in a localized region of the liquid-crystal cell. The net effect is that the solitary wave undergoes refraction and trajectory bending. A general modulation theory for this refraction is developed, and particular cases of circular, elliptical, and rectangular perturbations are considered. The results are found to be in excellent agreement with numerical solutions.
2010
Assanto, G., Minzoni, A.a., Smyth, N.f., Worthy, A.l. (2010). Refraction of nonlinear beams by localized refractive index changes in nematic liquid crystals. PHYSICAL REVIEW A, 82(5) [10.1103/PhysRevA.82.053843].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/133371
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