Resonant two-wave mixing in photorefractive materials with the aid of dc and ac fields

Kalinin, V.A., Shcherbin, K., Solymar, L., Takacs, J. and Webb, David J. (1997). Resonant two-wave mixing in photorefractive materials with the aid of dc and ac fields. Optics letters, 22 (24), pp. 1852-1854.

Abstract

A recently predicted resonant effect for the enhancement of two-wave mixing in photorefractive materials is investigated. The resonance occurs when the frequency of the applied ac field agrees with the eigenfrequency of the excited space-charge wave. Experimentally a clear resonance is found, as predicted by the theory, for high dc electric fields, but the resonance is smeared out for lower fields. A modified theory, taking into account the second temporal harmonic of the space-charge wave, shows good agreement with the experimental results.

Publication DOI: https://doi.org/10.1364/OL.22.001852
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Additional Information: © 1997 Optical Society of America
Uncontrolled Keywords: predicted resonant effect, enhancement, two-wave mixing, photorefractive materials, resonance, frequency, ac field, eigenfrequency, excited space-charge wave, dc electric fields, second temporal harmonic, space-charge wave
Published Date: 1997
Authors: Kalinin, V.A.
Shcherbin, K.
Solymar, L.
Takacs, J.
Webb, David J.

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