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Opto - Electronics Review
EN Recently, there have been shown that in planar liquid crystalline waveguides light beams can form spatial soliton due to the reorientational nonlinearity. Such self-trapped beams require only a few tens of mW of light power and their stability is controlled, by the state of light polarisation. In th[...]
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Opto - Electronics Review
EN Fast development of complex structures like microstructural fibers, photonic nanowires or slot waveguides requires numerical tools to predict a light propagation. There are many works concerning weakly guided case, but the microstructural fibers need algorithm for a high step of the refractive index[...]
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Opto - Electronics Review
EN The paper presents selected realisations of liquid crystal fibre optic systems utilising liquid crystal cells and liquid crystal wavequides with potential application in optical information processing. In particular, linear systems with polarisation modulation and also nonlinear phenomena in liquid [...]
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Opto - Electronics Review
EN We investigate all-optical Zener tunnelling in electro-optically tunable arrays of identical channel waveguides in undoped nematic liquid crystals. By all-optically inducing a refractive acceleration, we demonstrate a novel technique for band-to-band tunnelling, as well as a novel approach to light [...]
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Opto - Electronics Review
EN We investigate linear and nonlinear light propagation in a voltage-tunable array of waveguide channels in undoped nematic liquid crystals. This novel geometry, based on a photonic structure with a periodic modulation of refractive index controlled by an electric field, offers a wealth of possibiliti[...]
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Opto - Electronics Review
EN We investigate linear and nonlinear light propagation in the photonic crystal fibers infiltrated with nematic liquid crystals. Such a photonic structure, with periodic modulation of refractive index, which could be additionally controlled by the temperature and by the optical power, allows for the s[...]
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