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The role of the longitudinal component of the electric field vector in two-wave mixing in photorefractive BaTiO3 |
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| Authors: | K. H. Ringhofer S. Tao J. Takacs L. Solymar |
| Affiliation: | (1) Holography Group, Department of Engineering Science, University of Oxford, Parks Road, OX1 3PJ Oxford, UK;(2) Present address: Fachbereich Physik der Universität, PF4469 W-4500 Osnabrück, Fed. Rep. Germany;(3) Present address: Department of Electronic and Electrical Engineering, University College, London, Torrington Place, WCIE7JE London, UK |
| Abstract: | It is shown that for waves incident with a polarisation in the plane of the grating the component of the electric field in the direction of propagation must be included in the calculations. Coupled differential equations for both the transverse and longitudinal components are derived for wave interaction in photorefractive BaTiO3. Analytic solutions for the electric field of the signal wave are obtained under the assumption that the pump wave is undepleted. For the parameters considered the longitudinal component is shown to be negligible. |
| Keywords: | 42.65 42.70 |
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