A. G. Mart'yanov, E. Yu. Ageev, S. M. Shandarov, A. E. Mandel', N. V. Bochanova, N. V. Ivanova, Yu. F. Kargin, V. V. Volkov, A. V. Egorysheva, V. V. Shepelevich, “Interaction of two counterpropagating waves in a Ca:Ga:Bi12TiO20 crystal upon photoinduced absorption of light”, Kvantovaya Elektronika, 2003, Volume 33, Number 3,Pages 226

This article is cited in 4 papers

Nonlinear optical phenomena

Interaction of two counterpropagating waves in a Ca:Ga:Bi₁₂TiO₂₀ crystal upon photoinduced absorption of light

A. G. Mart'yanov^a, E. Yu. Ageev^a, S. M. Shandarov^a, A. E. Mandel'^a, N. V. Bochanova^a, N. V. Ivanova^a, Yu. F. Kargin^b, V. V. Volkov^b, A. V. Egorysheva^b, V. V. Shepelevich^c

^a Tomsk State University of Control Systems and Radioelectronics
^b Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow
^c Mozyr State Teacher's Training University

Abstract: It is shown that the interaction of counterpropagating coherent light beams at a wavelength of 633 nm in a Bi₁₂TiO₂₀:Ca:Ga crystal leads to the formation of a holographic reflection grating, which is a combination of phase and amplitude components related to photoinduced perturbations of the refractive index and absorption coefficient of the crystal. The formation of the grating is accompanied by a photoinduced decrease in the absorption coefficient of light Δα by -0.07 cm^-1. Photoinduced bleaching of the crystal occurs when the crystal is exposed to incoherent radiation at 600 nm (Δα= -0.12 cm^-1), while an increase in absorption is observed upon irradiation at 570 nm.

PACS: 42.40.Eq, 42.70.Nq

Received: 08.08.2002