MIROSHNICHENKO, Andrey E.; KIVSHAR, Yuri S.; BRASSELET, Etienne

doi:10.1063/1.2949076

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MIROSHNICHENKO, Andrey E.
Nonlinear Physics Center
Centre for Ultra-high bandwidth Devices for Optical Systems [CUDOS]

KIVSHAR, Yuri S.
Nonlinear Physics Center
Centre for Ultra-high bandwidth Devices for Optical Systems [CUDOS]

BRASSELET, Etienne
Centre de physique moléculaire optique et hertzienne [CPMOH]

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Applied Physics Letters. 2008-06-23, vol. 92, n° 25, p. 253306 (1-3)

American Institute of Physics

Resumen en inglés

We demonstrate that one-dimensional photonic crystals with pure nematic liquid-crystal defects can operate as all-optical switching devices based on optical orientational nonlinearities of liquid crystals. We show that such a periodic structure is responsible for a modulated threshold of the optical Fréedericksz transition in the spectral domain, and this leads to all-optical switching and light-induced multistability. This effect has no quasi-statics electric field analogue, and it results from nonlinear coupling between light and a defect mode.< Leer menos

Palabras clave en inglés

nematic liquid crystals

photonic crystals

61.30.Jf

Defects in liquid crystals

42.70.Df

Liquid crystals

42.65.-k

Nonlinear optics

42.70.Qs

Photonic bandgap materials

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All-optical switching and multistability in photonic structures with liquid crystal defects

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