This article is cited in 12 papers

Nonlinear optical phenomena

Two-beam coupling on the reflection grating in a Bi₁₂TiO₂₀ crystal

E. Yu. Ageev^a, S. M. Shandarov^a, S. Yu. Veretennikov^a, A. G. Mart'yanov^a, V. A. Kartashov^a, A. A. Kamshilin^b, V. V. Prokof'ev^b, V. V. Shepelevich<sup>c

a</sup> Tomsk State University of Control Systems and Radioelectronics
^b Department of Physics, University of Joensuu, Finland
^c Mozyr State Teacher's Training University

Abstract: The results of experimental investigations of the dynamics of two-beam amplification on a reflection holographic grating and photoinduced absorption of light at λ = 633 nm in the (100) cut of a B₁₂TiO₂₀ crystal are presented. The numerical analysis of coupled-wave equations taking into account the absorption of light and the vector nature of the coupling in a gyrotropic cubic crystal with a given orientation is carried out. The processing of the experimental data using the scalar approach shows that the two-beam gain on a diffusion-type reflection grating in the B₁₂TiO₂₀ crystal may achieve 4.7 cm^-1, while the additional absorption induced by light amounts to 0.65 cm^-1.

PACS: 42.70.Nq, 42.40.Eq

Received: 28.12.2000

 English version: Quantum Electronics, 2001, 31:4, 343–345

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