Photorefractive light amplification by forward four-wave mixing in BaTiO3 - ScienceDirect Skip
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In a photorefractive Bi 12 SiO 20 crystal with high applied electric ac field of square-wave
shape a fast two-wave coupling response (less than 1 s) and a slow hologram readout …

We present a method to separate the effects of trap gratings and electro-optic gratings in
BaTiO_3 crystals, and we determine the true spatial shift between the electro-optic grating …

Fr~ nge-lock~ ng techniques ar used for the recording of stable 90 0 phase-shifted running
holograms In photorefractive crystals. The use of this technique permits the characterization …

The propagation of a single light beam in a photorefractive crystal has been, in the past few
years, the focus of growing interest. In particular, quasisteady state bright spatial solitons …

Origin of the lobe structure in photorefractive beam fanning Page 1 PHYSICAL REVIEW A
VOLUME 52, NUMBER 2 Origin of the lobe structure in photorefractive beam fanning AUGUST …

Holographic gratings were recorded in a ferroelectric bismuth titanate crystal. Refractive
index as well as absorption gratings contribute to the recording process with modulation …

The four-wave mixing (FWM) photorefractive response was investigated in pure and Fe-
doped Bi 12 GeO 20 (BGO) crystals. A significant difference was found in the temperature …

We have performed analysis and measurements on a device which can selectively
attenuate a coherent beam in the presence of an incoherent signal-bearing beam. Our …

Spontaneous formation of optical patterns is demonstrated in a system consisting of a
BaTiO_3 crystal and a feedback mirror. The buildup and the dependence on the feedback …