We consider phase conjugation via degenerate four-wave mixing in photorefractive crystals
when more than one grating mechanism is operative. A method for exact solution of the …

Photorefractive nonlinear optics and phase conjugation together with some of their
applications including optical image processing, distortion correction and interferometry are …

We demonstrate a technique by which the amplitudes of the various spatial harmonics of a
holographic grating written in a photorefractive material may be increased with respect to …

We present an analysis of what is called parametric oscillation in photorefractive media. It is
shown theoretically that when a running grating and a constant electric field are applied to a …

The self-diffraction of frequency-modulated light in the photorefractive B 12 TiO 20 crystal
was studied experimentally. To observe the effect, the crystal was illuminated by two light …

This paper is the second in a series describing the theory of photorefractive phase-
conjugate oscillators. We apply the formulation developed in Paper I to study the threshold …

The saturation intensity, oscillation spectrum, and temporal dynamics of oscillation are
studied for a semilinear coherent oscillator with two counterpropagating pump waves and a …

Conventional techniques of holographic recording in photorefractive crystals (see, eg,[9.1-
3]) involve the use of stationary external conditions, such as a fixed interference pattern …

The possibility of phase conjugate mirrors (PCM's) with reflectivities exceeding unity was
predicted by Yariv and Pepper, I and subsequently observed by Bloom, Liao, and …

Increased four-wave mixing reflectivity in BaTiO 3 has been observed in the case of moving
interference gratings earlier [Phys. Rev. Lett. 55 (1985) 821]. In diffusion dominated photo …