Multiwave mixing and spatial solitons in photorefractive Bi<sub>12</sub>TiO<sub>20</sub> crystals

N. G. Borzdov; A. Kiessling; D. A. Khmelnitsky; A. Yu. Matusevich; K. A. Pismennaya; A. L. Tolstik

doi:10.1117/12.676744

11 May 2006 Multiwave mixing and spatial solitons in photorefractive Bi₁₂TiO₂₀ crystals

N. G. Borzdov, A. Kiessling, D. A. Khmelnitsky, A. Yu. Matusevich, K. A. Pismennaya, A. L. Tolstik

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.

Citation Download Citation

N. G. Borzdov, A. Kiessling, D. A. Khmelnitsky, A. Yu. Matusevich, K. A. Pismennaya, and 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); https://doi.org/10.1117/12.676744

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