Electric-field frequency dependence of Pockels coefficients in 2-amino-5-nitropyridium dihydrogen phosphate organic–inorganic crystals

Julien Zaccaro , Jean-Paul Salvestrini (1) , A. Ibanez , P. Ney (1) , M. D. Fontana (1)

1 LMOPS - Laboratoire Matériaux Optiques, Photonique et Systèmes

The electro-optic and dielectric properties of organic – inorganic 2-amino-5-nitropyridium dihydrogen phos- phate crystals were measured near room temperature at a wavelength of 632.8 nm and as a function of an electric-field frequency that varied from 1 kHz to 40 MHz. The frequency dispersion of the electro-optic co- efficients and their comparison with the second-harmonic generation coefficients showed that the largest part of the electro-optic properties is electronic in origin (whereas the piezo-optic contribution is small). Results reveal a large anisotropy of the ionic and electronic contributions that is related to the contributions of the organic molecule to nonlinear polarizability

Domaines: Optique [physics.optics]

Julien Zaccaro, Jean-Paul Salvestrini, A. Ibanez, P. Ney, M. D. Fontana. Electric-field frequency dependence of Pockels coefficients in 2-amino-5-nitropyridium dihydrogen phosphate organic–inorganic crystals. Journal of the Optical Society of America B, 2000, 17 (3), pp.427-432. ⟨10.1364/JOSAB.17.000427⟩. ⟨hal-00186035⟩