Search Results - "Sidorov, N.V."

ANALYSIS OF CLUSTER FORMATION IN MODELED LITHIUM NIOBATE CRYSTALS by O.R. Starodub, V.M. Voskresenskij, N.V. Sidorov, M.N. Palatnikov

“…In the framework of the semiclassical atomistic model, clusterization processes in a lithium niobate crystal LiNbO3 were investigated. Computer modeling of the…”
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THE EFFECT OF Mg AND Fe DOPANTS ON CONCENTRATION OF COMPLEX DEFECTS ASSOCIATED WITH OH-GROUPS IN THE LITHIUM NIOBATE CRYSTAL by L.A. Bobreva, S.M. Masloboeva, N.V. Sidorov, M.N. Palatnikov

“…In the spectra of infrared absorption in the region of stretching vibrations of OH-groups the effect is investigated of dopants Mg,Mg+Fe on the concentration…”
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Research of photorefractive properties in lithium niobate crystals by raman and photoinduced light scatering by N.V. Sidorov, N.A. Teplyakova, M.N. Palatnikov

“…In Raman spectra of LiNbO3 crystals with photorefractive response in Y(ZX)Y scattering geometry a significant widening was detected of the band with frequency…”
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Mathematical simulation of cluster formation in lithium niobate crystals with introduction of the impurity ion by O.R. Starodub, V.M. Voskresenskij, N.V. Sidorov, M.N. Palatnikov

“…Processes of clustering in a lithium niobate crystal (LiNbO3) were studied. It is shown that the cluster with the ratio Li / Nb ≈ 0,945, which is close to the…”
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Computer simulation of structure and dimensions of oxygen-octaadric clusters in lithium niobate crystal and the dynamics of their development with changes in composition by V.M. Voskresensky, O.R. Starodub, N.V. Sidorov, M.N. Palatnikov

“…The peculiarities of formation of energetically equilibrium dipole oxygen-octahedral clusters in the structure of a ferroelectric crystal of lithium niobate…”
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Interrelation between optical and radiation resistance of lithium niobate crystals of different chemical composition by M.N. Palatnikov, N.V. Sidorov, O.V. Makarova, D.V. Ivanenko, S.L. Panasyuk, E.R. Kurkamgulova, I.V. Yudin

“…Optical characteristics of nominally pure and Mg2+, Zn2+, Gd3+, B3+ cations doped LiNbO3 crystals were investigated. The radiation resistance of β- and γ-…”
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Anharmonicity of crystal lattice vibrations and superionic conductivity in solid solutions Li0.12Na0.88TayNb1-yO3 with a perovskite structure by Sidorov, N.V., Palatnikov, M.N., Pyatyshev, A.Yu

“…In the wavenumber range 1000–2000 cm−1, weak second-order spectra have been discovered for the first time in the Raman spectra of the ferroelectric phase of…”
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Features of the defect structure of a lithium-gradient nonlinear optical single crystal LiNbO3 and their manifestation in the Raman spectra by Sidorov, N.V., Pyatyshev, A.Yu, Galutskiy, V.V., Stroganova, E.V., Skrabatun, A.V.

“…[Display omitted] •Raman spectra of gradient LiNbO3 registered in a wide frequency range.•The composition gradient corresponds to a monotonic change in the…”
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Structure particularities and first, second order Raman spectra of LiNbO3:Tb near the concentration threshold by Sidorov, N.V., Palatnikov, M.N., Gorelik, V.S., Sverbil, P.P.

“…Defective structure particularities have been studied in pure non-stoichiometric (Li/Nb≠1) lithium niobate (NSLN) crystals and LiNbO3:Tb (2.24 wt%) crystal…”
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Growth, microstructure and optical characteristics of doped LiNbO3:Gd and LiNbO3:Cu:Gd lithium niobate crystals by Palatnikov, M.N., Sidorov, N.V., Pyatyshev, A. Yu, Sverbil, P.P., Teplyakova, N.A., Makarova, O.V.

“…Double- and single-doped lithium niobate (LN) crystals were grown by Czochralski at air from platinum crucibles: sample 1 ([Cu] = 0.57, [Gd] = 0.07 wt%),…”
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Parametrization of nonstoichiometric lithium niobate crystals with different states of defectivity by Anikiev, A.A., Sidorov, N.V., Palatnikov, M.N., Umarov, M.F., Anikieva, E.N.

“…Quasi-elastic light scattering (QELS) and Raman scattering have been studied at 296 K in congruent lithium niobate (CLN) crystals with a different degree of…”
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Optical properties of double doped LiNbO3:Gd:Mg crystals by N.A. Teplyakova, N.V. Sidorov, M.N. Palatnikov

“…By direct alloying of congruent melt with magnesium and gadolinium oxides, compositionally uniform nonlinear optical single double doped crystals with…”
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Features of the defect structure of a LiNbO3:Cu (0.015 wt.%) single crystal by N.A. Teplyakova, N.V. Sidorov, M.N. Palatnikov

“…By direct alloying of melt with copper oxide, а compositionally uniformity LiNbO3:Cu (0,015 wt%) single crystal doped with a photovoltaically active copper…”
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Second-order Raman spectra of a LiNbO3:Tb crystal by Sidorov, N.V., Palatnikov, M.N., Gorelik, V.S., Sverbil, P.P.

“…[Display omitted] •LiNbO3:Tb (2.24 wt%) crystal has intense second-order Raman bands, congruent LN – do not.•The bands indicate bound and resonant states of…”
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FEATURES OF THE DEFECT STRUCTURE AND OPTICAL PROPERTIES OF AN LiNb[O.sub.3]:Mg CRYSTAL by Sidorov, N.V, Teplyakova, N.A, Bobreva, L.A, Makarova, O.V, Palatnikov, M.N

“…Defects and optical properties of LiNb[O.sub.3]:Mg(5.05):Fe(0.009 mol%) are studied by IR absorption spectroscopy, Raman spectroscopy, laser conoscopy, and…”
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Conditions of application of LiNbO3 based piezoelectric resonators at high temperatures by Palatnikov, M.N., Sandler, V.A., Sidorov, N.V., Makarova, O.V., Manukovskaya, D.V.

“…We have researched piezoelectric, dielectric properties and ion conductivity in near-stoichiometric LiNbO3 crystals (NSLN) in order to establish conditions for…”
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Features of the localization of dopping cations Tb3+ in a LiNbO3 crystal in the concentration range 0,1-2,21 wt. by L.A. Bobreva, N.V. Sidorov, M.N. Palatnikov, A.Yu. Pyatyshev

“…LiNbO3:Tb (0,1 wt.%), LiNbO3:Tb (0,48 wt.%), and LiNbO3:Tb (2,21 wt.%) crystals were studied by the infrared absorption spectroscopy in the area of valence…”
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Investigation of the structural features of LiNbO3:Gd (0.002-0.26 wt.%) crystals by IR absorption spectra in the region of valence vibrations of hydrogen bonds by L.A. Bobreva, N.V. Sidorov, M.N. Palatnikov, A.N. Gosteva

“…Nonlinearly optical single crystals LiNbO3:Gd (0.001-0.26 wt.%) were grown by the Czochralskii method using the technology of direct doping charge of congruent…”
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Raman spectroscopy and X-Ray analysis of non-stoichiometric lithium niobate crystals by Sidorov, N.V., Teplyakova, N.A., Palatnikov, M.N., Aleshina, L.A., Sidorova, O.V., Kadetova, A.V.

“…Lithium niobate single crystals of congruent composition and doped with various impurities are investigated using Raman spectroscopy and X-ray analysis. Raman…”
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Influence of the lithium niobate crystals composition on mobility of Н+ and Li+ ions in the temperature range 300–450 K by Yatsenko, A.V., Shulgin, V.F., Palatnikov, M.N., Sidorov, N.V., Makarova, O.V.

“…IR absorption spectroscopy and electrical conductivity have been studied in a series of lithium niobate crystals. We have established that mobility of Li+ ion…”
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