Based on a two-level model of optical transitions, the problem of positive and negative
feedback effects during simultaneous reading and writing of dynamic holograms in …

Using a two-level model of optical transitions, the positive feedback effect observed in the
presence of absorption in four-wave mixing in photorefractive crystals has been determined …

Based on a previously developed two-level model of four-wave interaction in photorefractive
crystals, expressions for the amplitude and phase of a transmission holographic grating …

Based on the two-level model of recording and read-out of dynamic holographic gratings,
precise expressions for wave amplitudes, diffraction efficiency and the gain coefficient …

The methods of dynamic holography, which are based on the self-diffraction of coherent light
beams in the bulk of a reversible photosensitive medium, are widely used for processing …

Analytical expressions for the transient processes in photorefractive crystals (an energy
exchange and grating formation) are obtained, which occur in a two-beam optical scheme …

The effect of multiple internal reflections on the stationary energy transfer in degenerate two-
wave mixing, in a reflection geometry, with photorefractive crystals is studied. Numerical …

DYNAMICS OF TWO-WAVE MIXING WITH RUNNING GRATINGS IN PHOTOREFRACTIVE
CRYSTALS J. GOLTZ and T. TSCHUDI Solving the equations of K Page 1 Volume 67, number 6 …

As before, Z can be obtained by solving Equation 8 with a set of given values ofgsz, Co and
Ilo. With% 4: 0 it may be difficult to solve the coupled wave equation analytically. It is easier …

The transformation processes of holograph gratings in photorefractive crystals from two-
wave interaction with detuning have been studied. For weak interactions an analytic solution …