Search Results - "Shumelyuk, A."

Light pulse slowing down up to 0.025 cm/s by photorefractive two-wave coupling by Podivilov, E, Sturman, B, Shumelyuk, A, Odoulov, S

“…It is shown experimentally and theoretically that photorefractive wave coupling can be used for dramatic (< or approximately 0.025 cm/s) deceleration of light…”
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Optimizing nonlinear beam coupling in low-symmetry crystals by Shumelyuk, A, Volkov, A, Odoulov, S, Grabar, A, Stoyka, I, Evans, D R

“…The purpose of this paper is to find the polarizations and spatial orientations of the two interacting counterpropagating coherent light waves which ensure the…”
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Wave mixing in nominally undoped Sn2P2S6 at high light intensities by Shumelyuk, A., Wesner, M., Imlau, M., Odoulov, S.

“…The intensity dependence of the photorefractive response of Sn 2 P 2 S 6 is studied for the Kr + -laser wavelength of 647 nm and pump-beam intensities of up to…”
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Slowing down of light in photorefractive crystals with beam intensity coupling reduced to zero by Shumelyuk, A, Shcherbin, K, Odoulov, S, Sturman, B, Podivilov, E, Buse, K

“…A considerable deceleration of light pulses in crystals with nearly compensated space-charge field proves that the strong dispersion of dynamic photorefractive…”
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Coupling of counterpropagating light waves in low-symmetry photorefractive crystals by Shumelyuk, A., Volkov, A., Odoulov, S., Cook, G., Evans, D. R.

“…Coupling of two counterpropagating coherent light waves in tin hypothiodiphosphate (Sn 2 P 2 S 6 , SPS) is usually strongly inhibited because of severe space…”
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Vanadium-doped photorefractive titanosillenite crystal by Montenegro, R., Shumelyuk, A., Kumamoto, R., Carvalho, J. F., Santana, R. C., Frejlich, J.

“…Holographic recording in a vanadium-doped B 12 TiO 20 (BTO) photorefractive crystal puts into evidence a large hole–electron competition showing a fast and a…”
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Spectral sensitivity of nominally undoped photorefractive Sn2P2S6 by SHUMELYUK, A, ODOULOV, S, OLEYNIK, O, BROST, G, GRABAR, A

“…Nominally undoped tin hypothiodiphosphate is shown to possess photorefractive sensitivity from its band edge in the visible region of the spectrum up to 1.3…”
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Photorefraction of Pb-doped tin hypothiodiphosphate by Shumelyuk, A., Barilov, D., Imlau, M., Grabar, A., Stoyka, I., Vysochanskii, Yu

“…Photorefractive properties of deliberately lead-doped tin hypothiodiphosphate (Sn2P2S6, SPS) are investigated. In contrast to nominally undoped crystals, the…”
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Electric-field enhancement of beam coupling in Sn2P2S6 by Shumelyuk, A., Odoulov, S., Kip, D., Krätzig, E.

“…The influence of an external field on photorefractive recording in Sn2P2S6 (SPS) crystals is studied. A large gain factor of more then 15 cm is achieved for a…”
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Studies of light-induced charge transfer in Sn2P2S6 by combined EPR/optical absorption spectroscopy by RUEDIGER, A, SCHIRMER, O, ODOULOV, S, SHUMELYUK, A, GRABAR, A

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Holographic Recording and Electrooptical Effect in Films of Azobenzene Polycomplexes with Cobalt by Davidenko, I. I., Savchenko, I. A., Popenaka, A. N., Shumelyuk, A. N., Bedarev, V. A.

“…Electrooptical effect, kinetics of recording and erasing of the hologram of the flat wave front in the films of polycomplex…”
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Anisotropy of the dielectric permittivity of Sn2P2S6 measured with light-induced grating techniques by SHUMELYUK, A, BARILOV, D, ODOULOV, S, KRÄTZIG, E

“…We apply, for the first time to our knowledge, photorefractive grating spectroscopy to obtain not-yet-known data on the anisotropy of the dielectric…”
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Photorefractive response of bulk periodically poled LiNbO3:Y:Fe at high and low spatial frequencies by Odoulov, S, Tarabrova, T, Shumelyuk, A, Naumova, II, II, Chaplina, TO

“…Polydomain periodically poled samples of iron-doped lithium niobate allow for phase grating recording with the diffraction efficiency close to that ensured by…”
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Multiline coherent oscillation in photorefractive crystals with two species of movable carriers by Shumelyuk, A., Odoulov, S., Brost, G.

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Reflection-type photorefractive gratings in tin hypotiodiphosphate by WEBER, M, VON BALLY, G, SHUMELYUK, A, ODOULOV, S

“…Reflection photorefractive gratings recorded by nearly counterpropagating light waves in the near infrared are studied in tin hypothiodiphosphate. The ratios…”
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Supplementary optical phase transition in photorefractive coherent oscillator by Shumelyuk, A., Shinkarenko, O., Odoulov, S., Jullien, P., Mathey, P.

“…The semilinear photorefractive coherent oscillator with two counterpropagating pump waves may exhibit two optical phase transitions: one from a disordered…”
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Photorefractive properties of bulk periodically poled LiNbO3:Y:Fe by Odoulov, S., Tarabrova, T., Shumelyuk, A., Naumova, I.I., Chaplina, T.O.

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Wave mixing in nominally undoped Sn2P2S6 at high light intensities: Photorefractive Materials, Effects, and Devices: Control of Light and Matter by SHUMELYUK, A, WESNER, M, IMLAU, M, ODOULOV, S

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Vanadium-doped photorefractive titanosillenite crystal: Photorefractive Materials, Effects, and Devices: Control of Light and Matter by MONTENEGRO, R, SHUMELYUK, A, KUMAMOTO, R, CARVALHO, J. F, SANTANA, R. C, FREJLICH, J

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Hologram recording and the electrooptic effect in azobenzene derivative polymers and azobenzene derivative-cobalt polycomplexes by Davidenko, N. A., Savchenko, I. A., Davidenko, I. I., Popenaka, A. N., Shumelyuk, A. N., Bedarev, V. A.

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