… by photorefractive crystal is similar to image amplification by … the transmitted beam is not
involved with image formation. … for imaging the signal pattern upon the photorefractive crystal …

… The photorefractive medium we use is a 0-cut Rh:BaTiO3 crystal with dimensions of 7.0 mm
x 3.0 mm x 7.0 mm (c axis parallel to one of the long dimensions) and 1000 ppm Rhodium in …

… We have investigated essentially two methods to amplify coherent image information: first,
image amplification in pumped dye and argon gas, and second, amplification in a …

… Therefore, it is absolutely necessary to give a complete three-dimensional analysis of the
gain and fidelity of the image amplification, which is the purpose of this paper. For simplicity, …

… image amplification in thin crystal is … image amplifier, which is the incident light beam, while
similarly the decrease of the couultimate goal of two-wave coupling in photorefractive crystal …

… memory using two photorefractive crystals. Images are stored in the first crystal and reconstructed
with low-intensity beams, then amplified in the second crystal operating in a high-gain …

… [ 15 1, for noise suppression in photorefractive amplifiers. In … for beam fanning in the BaTi03
crystal which makes the beam … amplified image and the noise removed amplified image are …

… in the photorefractive crystal, which takes account of the difference in spatial frequency in a
beam, has been built to study the image … The factors that impact on the uniformity of image …

… (2-D) image amplification, it is a practical way to make use of photorefractive crystals in
two-wave … To achieve high-quality image amplification, not only the value of gain needs to be …

… investigated the process of image amplification in photorefractive crystals as a result of the
self-diffraction phenomenon. We have found that the amplification process is of the threshold …