11 May 2006 Multiwave mixing and spatial solitons in photorefractive Bi12TiO20 crystals
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Proceedings Volume 6255, ICONO 2005: Nonlinear Space-Time Dynamics; 62550B (2006) https://doi.org/10.1117/12.676744
Event: ICONO 2005, 2005, St. Petersburg, Russian Federation
Abstract
The energy efficiency of multiwave mixing and geometrical parameters of spatial solitons in photorefractive Bi12TiO20 crystals in conditions of pulsed and continuous-wave laser excitation have been studied experimentally. It has been found that with the use of 532 nm-wavelength laser pulses switching of the photorefractive nonlinearity mechanism requires a time interval in excess of 20 - 50 ns. And saturation is observed when the duration is over 100 ns. The formation dynamics of spatial solitons in photorefractive Bi12TiO20 crystals has been analyzed using radiation of a continuous-wave He-Ne laser. It has been determined that the formation conditions and dynamics are influenced by a number of factors including the radiation input geometry of a crystal, power of the light beam, orientation of its polarization relative to the crystal axes, applied electric field and its direction.
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N. G. Borzdov, A. Kiessling, D. A. Khmelnitsky, A. Yu. Matusevich, K. A. Pismennaya, A. L. Tolstik, "Multiwave mixing and spatial solitons in photorefractive Bi12TiO20 crystals", Proc. SPIE 6255, ICONO 2005: Nonlinear Space-Time Dynamics, 62550B (11 May 2006); doi: 10.1117/12.676744; https://doi.org/10.1117/12.676744
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