A new approach for signal processing and parameter measurement is reported. This new
concept uses Bragg cells and photorefractive materials in a time-integrating structure to …

We have developed an approximate analytic expression of two wave mixing for absorption
and phase gratings in photorefractive materials taking into account self-diffraction effect of …

A new approach for studying photorefractive gratings in two-wave mixing experiments by a
phase modulation technique is presented. The introduction of a large-amplitude, high …

Semiconductors as photorefractive materials sensitive to infrared light are among others
advantageous since they have small response times. Typically these time constants are in …

Phase mismatches with regard to light of photorefractive gratings have been investigated for
arbitrary modulation depths of the illuminating pattern. The time evolution of the phases …

A simple polarization technique for separate measurement of absorption and phase gratings
in photorefractive crystals, that allowed us to demonstrate experimental evidence of …

A moving grating technique is used to monitor the kinetics of the amplitudes and phases of
the modulations of refractive index and absorption coefficients induced in a photosensitive …

The correct determination of the spatial phase shift? _p in photorefractive materials is crucial
to the proper characterization of novel materials. It is shown that the grating translation …

When photorefractive materials are included as elements in image and signal processing
systems, the dynamic range of the photorefractive element has a significant impact on the …

The first volume deals with fundamental phenomena. Chapters 1 to 3 give an introduction to
the photorefractive effect in general and a detailed description for dielectric crystals. Chapter …