Abstract

We propose a physical model to explain peculiarities of photorefractive recording and dark decay detected in ${\mathrm{LiNbO}}_3$ crystals within temperature ranges below and above 200 °C. Distinctive features of our description are proximity of the activation energies for protons and thermally excited electrons and their competitive contributions to the charge transport.

© 1998 Optical Society of America

Photorefractive fixing phenomena in alpha-phase proton-exchanged LiNbO3 waveguides

Gonzalo de la Paliza, Jesús Carnicero, Angel García-Cabañes, Mercedes Carrascosa, and José M. Cabrera
J. Opt. Soc. Am. B 22(10) 2229-2236 (2005)

Theoretical modeling of the fixing and developing of holographic gratings in LiNbO₃

M. Carrascosa and F. Agulló-López
J. Opt. Soc. Am. B 7(12) 2317-2322 (1990)

Improved development of thermally fixed holograms in photorefractive LiNbO₃ crystals with high-intensity laser pulses

S. Breer, K. Buse, and F. Rickermann
Opt. Lett. 23(1) 73-75 (1998)

Photorefractive charge compensation in α-phase proton-exchanged LiNbO₃ waveguides

A. Méndez, A. Garcı́a-Cabañes, M. Carrascosa, and J. M. Cabrera
J. Opt. Soc. Am. B 17(8) 1412-1419 (2000)

Diffraction-efficiency enhancement of photorefractive gratings in Bi₄Ti₃O₁₂ at low temperatures

Xuefeng Yue, K. Buse, F. Mersch, E. Krätzig, and R. A. Rupp
J. Opt. Soc. Am. B 15(1) 142-147 (1998)