A band-conduction model for the photorefractive effect is derived in which simultaneous hole and electron conduction is taken into account. The anomalous behavior of nearly compensated BaTiO3 crystals in beam-coupling experiments is explained.
© 1986 Optical Society of America
Original Manuscript: December 23, 1985
Manuscript Accepted: February 12, 1986
Published: May 1, 1986
F. P. Strohkendl, J. M. C. Jonathan, and R. W. Hellwarth, "Hole–electron competition in photorefractive gratings," Opt. Lett. 11, 312-314 (1986)