Thick holographic refractive index gratings are written in nominally pure and in iron doped
BaTiO 3 crystals. The phase shift between refractive index grating and light pattern is studied …

Homogeneous illumination of a BaTiO 3 crystal with a green light pulse allows subsequent
recording of a holographic grating with infrared light pulses. The grating can be read …

Fixing of a holographic grating in a single BaTiO_3 crystal is studied in detail by means of a
thermal process. Above T= 78° C, oscillations of the diffracted intensity of the sample …

A theory is presented that describes the time evolution of the diffraction properties of
holographically formed thick phase gratings in ferroelectrics, particularly in iron‐doped …

Holograms recorded under suitable conditions in photorefractive BaTiO 3 exhibit an unusual
dark build-up. The diffraction efficiency increases by some orders of magnitude after the …

Light–induced refractive index changes and holographic beam coupling are investigated in
nominally pure and Al–doped bismuth titanium oxide (BTO) crystals. Nominally pure crystals …

Photorefractive materials are used for holographic storage, image processing, and phase
conjugation 11, 2/. Especially BaTi03 with its large electrooptic coefficients has been …

Studying moving holographic gratings in a Bi12TiO20 crystal with an applied external field,
we have observed the appearance of a “shape-asymmetry” in the diffraction efficiency as a …

The phenomenon of``optical damage,''that is, optically induced changes in the index of
refraction, can be used as a form of holographic storage in transparent ferroelectric crystals …

The relative phase shift between a light grating and an induced refractive index grating is
investigated in doped LiNb03 and LiTaO3 crystals by holographic beam coupling …