The gain of forward two-wave mixing (FTWM) and time response of a Cu-doped barium
strontium potassium sodium niobate (KNSBN) crystal are investigated at 514.5 nm in the …

Sr_0. 59Ba_0. 41Nb_2O_6 and Sr_0. 75Ba_0. 25 Nb_2O_6 exhibit an intensity-dependent
absorption in the visible spectral range. We perform pump (green)–probe (red) …

Abstract The congruent Pr (0.1 wt%): Ce (0.1 wt%): LiNbO 3 (PCLN) crystal and near-
stoichiometric Pr (0.1 wt%): Ce (0.1 wt%): LiNbO 3 (PCSLN) crystal have been grown by the …

Thermal fixing of photorefractive holograms in KTa_1-xNb_xO_3 is discussed. Charge
compensation was observed near 90° C in crystals containing sufficient protons. The …

Dynamic coupled-wave theory predicts the bending of recorded hologram phase planes in
most photorefractive crystals. Bent holograms occur in LiNbO_3 and other photovoltaic …

We present the theoretical and experimental results of photorefractive two-beam coupling in
Cr-doped strontium barium niobate: 60, using thermal excitation (ie, dark conductivity) to …

A high sensitivity and large dynamic range are observed in LiNbO 3: Fe: Cu and In-doped
LiNbO 3: Fe: Cu crystals at 488 nm wavelength based on the two-beam coupling …

We investigate recording and erasure of photorefractive holographic gratings in an undoped
Bi_12TiO_20 crystal in a moderate to high intensity regime of the recording beams at 639.7 …

Photorefractive effects of nominally pure and iron‐doped KNbO3 crystals with
concentrations between 150 and 300 ppm have been investigated. In order to optimize the …

We analyze the mechanisms leading to a highly diffractive fixed hologram in photorefractive
Fe-doped lithium niobate crystals by simultaneous self-stabilized holographic recording and …