Abstract
Space-charge fields in photorefractive materials enhanced by moving fringes are studied for simultaneous electron–hole transport. Two distinct models, one with a single set of impurity sites and the other with two independent sets, are discussed. It is shown that the latter model gives rise to a new space-charge field resonance that depends on the relative concentration of electrons and holes. The space-charge wave concept is used in the mathematical analysis of both models.
© 1995 Optical Society of America
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