We propose a physical model to explain peculiarities of photorefractive recording and dark decay detected in LiNbO3 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
B. I. Sturman, M. Carrascosa, F. Agulló-López, and J. Limeres, "Two kinetic regimes for high-temperature photorefractive phenomena in LiNbO3," J. Opt. Soc. Am. B 15, 148-151 (1998)