Temperature dependent photorefractive properties of a Ce-doped BaTiO3 crystal

SX Dou, Y Ding, HJ Eichler, Y Zhu, PX Ye - Optics communications, 1996 - Elsevier
The efficiency and time response of a Ce-doped BaTiO3 crystal as a self-pumped phase
conjugator were investigated at 514.5 nm at elevated temperature. It was found that its …

Two-wave mixing in photorefractive BaTiO3:Rh at 1.06 µm in the nanosecond regime

N Huot, JMC Jonathan, G Roosen, D Rytz - Optics letters, 1997 - opg.optica.org
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 …

Competition between forward- and backward-stimulated photorefractive scattering in BaTiO3

GC Valley - JOSA B, 1987 - opg.optica.org
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 …

Transient gain enhancement in photorefractive crystals with two types of movable charge carrier

A Shumelyuk, A Hryhorashchuk, S Odoulov… - Optics letters, 2007 - opg.optica.org
Considerable improvement of a transient two-beam coupling gain is reported for
Sn_2P_2S_6, a photorefractive crystal that possesses two types of movable charge carrier …

Incoherent-to-coherent conversion by use of the photorefractive fanning effect

J Zhang, H Wang, S Yoshikado, T Aruga - Optics letters, 1997 - opg.optica.org
A dynamic incoherent-to-coherent converter using the photorefractive fanning effect is
demonstrated in a BaTiO_ 3: Ce crystal, and high-quality positive replicas of the incoherent …

Enhancement of the signal-to-background ratio in photorefractive two-wave mixing by mutually incoherent two-beam coupling

S Breugnot, M Defour, D Dolfi, H Rajbenbach… - Optics letters, 1994 - opg.optica.org
We present and experimentally demonstrate a new method for enhancing the signal-to-
background ratio of two-wave mixing in photorefractive crystals. The method uses a mutually …

Fast switching of photorefractive output by applied electric field

IA Taj, P Xie, T Mishima - Optics communications, 2001 - Elsevier
We show that photorefractive materials having large electro-optic coefficients such as
BaTiO3 require relatively small electric field to induce sufficient phase mismatch for the …

Speckle photo electromotive force in CdTe: V and CdTe: Ge for measurement of vibration with large amplitude

TO Dos Santos, J Frejlich, JC Launay, K Shcherbin - Applied Physics B, 2009 - Springer
The photo-electromotive force induced by a speckle pattern vibrating with large amplitude in
photorefractive CdTe: V and CdTe: Ge is experimentally studied. This technique is shown to …

Explanation of the apparent sublinear photoconductivity of photorefractive barium titanate

D Mahgerefteh, J Feinberg - Physical review letters, 1990 - APS
We explain the apparent sublinear intensity dependence of photoconductivity in barium
titanate. In our model shallow acceptors act as a reservoir for charges optically excited from …

High gain coherent amplification in thermally stabilized InP: Fe crystals under dc fields

C Ozkul, G Picoli, P Gravey, N Wolffer - Applied optics, 1990 - opg.optica.org
After recalling the principal results of the theory of two-wave mixing gain enhancement in
photorefractive InP: Fe crystals under a dc field, we report on experiments performed with …