0000000000365361

AUTHOR

Yulian M. Vysochanskii

showing 2 related works from this author

Enhanced photorefractive properties of Bi-doped Sn2P2S6

2008

International audience; Enhanced photorefractive properties of tin hypothiodiphosphate (Sn2P2S6) crystals as a result of Bi doping are presented. These new crystals were obtained by the vapor-transport technique using stoichiometric Sn2P2S6 composition with an additional amount of Bi up to 0.5 mol. % in the initial compound. The bandgap edges of the obtained crystals are located at ~750 nm and shift toward the red wavelengths with increasing Bi concentration. Sn2P2S6:Bi crystals are found to exhibit larger two-beam coupling gain coefficients (up to 17 cm−1 at a wavelength of 854 nm) as compared to (i) pure Sn2P2S6 (2.5 cm−1 at 854 nm), (ii) Sn2P2S6 crystals modified by the growth conditions…

Materials sciencePhotorefractive materialsNonlinear opticsBand gapAnalytical chemistrychemistry.chemical_element02 engineering and technologyDielectricNon linear material01 natural sciencesTernary compoundsDoped materials010309 opticsOptics0103 physical sciencesTin HypothiophosphatesOptical propertiesbusiness.industryDopingTwo wave mixingStatistical and Nonlinear PhysicsPhotorefractive effect021001 nanoscience & nanotechnologyPhotorefractive effectAtomic and Molecular Physics and OpticsBismuth additionsLight intensityWavelengthchemistryEnergy transferDielectric propertiesOptical materials0210 nano-technologybusinessTinRefractive index
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Photorefractive and photochromic effects in Sn2P2S6 at various temperatures

2013

Abstract Photochromic effect in nominally pure and doped Sn 2 P 2 S 6 photorefractive crystals is investigated in the temperature range 120–310 K. This effect determines a mechanism of the amplitude hologram formation at low temperatures, and we show that a competition between the photorefractive (phase) and the amplitude gratings occurs at increasing temperature.

Materials sciencebusiness.industryDopingHolographyPhotorefractive effectAtmospheric temperature rangeAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsOrganic photorefractive materialslaw.inventionPhotochromismAmplitudeOpticslawPhase (matter)Electrical and Electronic EngineeringPhysical and Theoretical ChemistrybusinessOptics Communications
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