Two-wave mixing and fanning effect in Bi<sub>12</sub>TiO<sub>20</sub> under an alternating electric field

Hemmo Tuovinen; Alexei A. Kamshilin; Risto Ravattinen; Victor V. Prokofiev; Timo Jaeaeskelaeinen

doi:10.1117/12.208096

1 September 1995 Two-wave mixing and fanning effect in Bi₁₂TiO₂₀ under an alternating electric field

Hemmo Tuovinen, Alexei A. Kamshilin, Risto Ravattinen, Victor V. Prokofiev, Timo Jaeaeskelaeinen

Author Affiliations +

Optical Engineering, Vol. 34, Issue 9, (September 1995). https://doi.org/10.1117/12.208096

Abstract

Numerical calculation of the two-wave mixing gain factor for arbitrary orientation of the holographic grating vector using the coupled wave theory developed for optically active electro-optic crystal enabling pump-beam depletion is presented. Two-dimensional angular dependencies of the gain factor are measured in Bi₁₂TiO₂₀ photorefractive crystal under an alternating external electric field using the fanning effect. It is found experimentally that the angular ditribution of fanning light is independent of the polarization state of the pump beam. This fact could not be explained by the existing theory.

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Hemmo Tuovinen, Alexei A. Kamshilin, Risto Ravattinen, Victor V. Prokofiev, and Timo Jaeaeskelaeinen "Two-wave mixing and fanning effect in Bi₁₂TiO₂₀ under an alternating electric field," Optical Engineering 34(9), (1 September 1995). https://doi.org/10.1117/12.208096

Published: 1 September 1995

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