Efficient enhancement of the two-wave mixing gain in photorefractive Bi 12 SiO 20 by
applying ac-sinusoidal electric fields at 11 kHz is reported. At a wavelength of 514.5 nm, the …

It is demonstrated that the emergence of subharmonics during two-wave mixing in a
Bi_12SiO_20 photorefractive crystal under applied alternating electric fields will markedly …

We consider non-degenerate two-wave mixing in photorefractive Bi 12 SiO 20. It is shown
theoretically that the presence of absorption and optical activity in the photorefractive media …

Abstract Photorefractive gain in Bi 12 SiO 20 (BSO) crystal was studied using a two-wave
mixing configuration. It was clear that the gain was strongly dependent on the incident plane …

The moving grating method was applied to a photorefractive Bi 12 SiO 20 crystal in order to
enhance the light amplification factor γ 0 in the two-wave mixing process and the reflectivity …

The steady-state beam-coupling gain during two-wave mixing in photorefractive materials
has been analyzed in the strong nonlinear regime (high modulation depths). Numerical …

A new mechanism for enhancing the photorefractive grating amplitude in Bi_12SiO_20 is
presented. We show experimentally that, by recording two photorefractive running gratings …

The conditions of high gain in wave mixing experiments with moving gratings in
photorefractive BSO crystals are reviewed. It is shown that under optimum recording …

The theory for two-wave mixing in a photorefractive material with an external electric field
and a moving grating is developed. Large gain enhancements are predicted for grating …

A method of enhancing the degenerate four-wave mixing (DFWM) conjugate reflectivity in
photorefractive BSO is described, which uses an auxiliary beam of different wavelength to …