On the validity of an approximation for the deviation of a light beam. by a prism | Zendy

Sylvie Bernhardt | Zendy; Philippe Delaye | Zendy; H. Veenhuis | Zendy; Daniel Rytz | Zendy; Gérald Roosen | Zendy

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On the validity of an approximation for the deviation of a light beam. by a prism

Author(s) -

Sylvie Bernhardt,

Philippe Delaye,

H. Veenhuis,

Daniel Rytz,

Gérald Roosen

Publication year - 2000

Publication title -

applied physics b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.591

H-Index - 131

eISSN - 1432-0649

pISSN - 0946-2171

DOI - 10.1007/s003400050010

Subject(s) - minimum deviation , prism , optics , angle of incidence (optics) , refractive index , range (aeronautics) , standard deviation , approximation error , incidence (geometry) , beam (structure) , physics , relative standard deviation , mathematics , mathematical analysis , materials science , statistics , detection limit , composite material

International audienceWe 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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