For the first time to our knowledge, photorefractive properties have been observed in planar
waveguides fabricated by the technique of ion-beam implantation in BaTiO_3 single …

Photorefractive planar waveguides have been fabricated in cerium-doped strontium barium
niobate (SrxBa_1− xNb_2O_6, SBN) single crystals by ion-beam implantation. The losses …

Beam-coupling experiments are carried out with two BaTiO_3 crystals as a function of the
intensity and wavelength. We demonstrate in these experiments that hole–electron …

We demonstrate the extension of the photorefractive effect in BaTiO_3 crystals to the 1.5-μm
wavelength regime, which is obtained by two-photon absorption induced by intense …

BaTiO3 crystals are important photorefractive materials due to their self-pumped phase-
conjugation and large electro-optic coefficient. High gain, fast response time and proper …

We have characterized the photorefractive performance of a special 45°-cut crystal of
BaTiO_3 and compared it with the conventional 0°-cut material. An increased peak gain …

Illumination of a photorefractive BaTiO_3 crystal provides an induced absorption increase,
which is explained by the two-center charge transport model. Detailed investigations of …

The gain–length product for two-wave mixing in photorefractive BaTiO_3 is calculated as a
function of the angles between a pump beam and a scattered beam and the crystal c axis …

We present two-beam coupling experiments in the nanosecond regime at 1.06?? µm, using
photorefractive BaTiO_3: Rh.? The maximum observed exponential gain coefficient is 14.2 …

We report what is to our knowledge the first observation and characterization of the
photorefractive effect in ion-implanted KNbO_3 waveguides. The implantation was …