Nondestructive method for characterization of the second-order nonlinear profile and charge distribution in thermally poled fused silica.
Noncollinear frequency conversion of two femtosecond pulses is used to characterize the nonlinear profile induced in thermally poled fused silica. This technique permits one to deduce the nonlinear profile and the charge distribution induced by the poling treatment. These data and the current that passes through the sample during the poling are consistent with the occurrence of a built-in electric field associated with the diffusion of two ionic species.
de Chatellus
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Centre de Physique Moléculaire Optique et Hertzienne, Université Bordeaux 1, Unité Mixte de Recherche 5798, 33405 Talence Cedex, France.
Montant
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Freysz
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