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A Maxwell-Bloch model with discrete symmetries for wave propagation in nonlinear crystals: an application to KDP

Published online by Cambridge University Press:  15 March 2004

Christophe Besse
Affiliation:
MIP, UMR 5640 (CNRS-UPS-INSA), Université Paul Sabatier, 118, route de Narbonne, 31062 Toulouse Cedex 4, France, besse@mip.ups-tlse.fr., degond@mip.ups-tlse.fr., saut@mip.ups-tlse.fr.
Brigitte Bidégaray-Fesquet
Affiliation:
LMC, UMR 5523 (CNRS-UJF-INPG), B.P. 53, 38041 Grenoble Cedex 9, France, Brigitte.Bidegaray@imag.fr.
Antoine Bourgeade
Affiliation:
CEA/CESTA, B.P. 2, 33114 Le Barp, France, Antoine.BOURGEADE@cea.fr.
Pierre Degond
Affiliation:
MIP, UMR 5640 (CNRS-UPS-INSA), Université Paul Sabatier, 118, route de Narbonne, 31062 Toulouse Cedex 4, France, besse@mip.ups-tlse.fr., degond@mip.ups-tlse.fr., saut@mip.ups-tlse.fr.
Olivier Saut
Affiliation:
MIP, UMR 5640 (CNRS-UPS-INSA), Université Paul Sabatier, 118, route de Narbonne, 31062 Toulouse Cedex 4, France, besse@mip.ups-tlse.fr., degond@mip.ups-tlse.fr., saut@mip.ups-tlse.fr. CEA/CESTA, B.P. 2, 33114 Le Barp, France, Antoine.BOURGEADE@cea.fr.
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Abstract

This article presents the derivation of a semi-classical model of electromagnetic-wave propagation in a non centro-symmetric crystal. It consists of Maxwell's equations for the wave field coupled with a version of Bloch's equations which takes fully into account the discrete symmetry group of the crystal. The model is specialized in the case of a KDP crystal for which information about the dipolar moments at the Bloch level can be recovered from the macroscopic dispersion properties of the material.

Type
Research Article
Copyright
© EDP Sciences, SMAI, 2004

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