Photorefractive two beam coupling characterization of a Barium-Calcium titanate crystal - Archive ouverte HAL Access content directly
Journal Articles Applied Physics B - Laser and Optics Year : 2000

Photorefractive two beam coupling characterization of a Barium-Calcium titanate crystal

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Abstract

We present two beam coupling characterization of Ba0.77Ca0.23TiO3, a ferroelectric material with no phase transition around room temperature that shows high photorefractive gain (7cm-1 with ordinary polarization and 15cm-1 with extraordinary polarization). We measure the electrooptic coefficients of Ba0.77Ca0.23TiO3. These values are compared to estimated theoretical values, calculated using a model that allows to deduce the tetragonal phase parameter (Pockels and piezoelectrics coefficients) from the parameters of the high temperature cubic phase (Kerr and electrostriction coefficients)
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Dates and versions

hal-00686038 , version 1 (06-04-2012)

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Sylvie Bernhardt, Philippe Delaye, H. Veenhuis, D. Rytz, Gérald Roosen. Photorefractive two beam coupling characterization of a Barium-Calcium titanate crystal. Applied Physics B - Laser and Optics, 2000, 70, pp.789-795. ⟨10.1007/s003400050010⟩. ⟨hal-00686038⟩
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