International
Tables for Crystallography Volume D Physical properties of crystals Edited by A. Authier © International Union of Crystallography 2006 |
International Tables for Crystallography (2006). Vol. D. ch. 2.4, p. 330
Section 2.4.3.2. Coupling via the electro-optic effect
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Laboratoire des Verres, Université Montpellier 2, Case 069, Place Eugène Bataillon, 34095 Montpellier CEDEX, France |
Piezoelectric media also exhibit an electro-optic effect linear in the applied electric field or in the field-induced crystal polarization. This effect is described in terms of the third-rank electro-optic tensor r defined by Using the same approach as in (2.4.2.10), for long waves can be expressed in terms of , and (2.4.3.8) leads to an effective Pockels tensor accounting for both the piezo-optic and the electro-optic effects: The total change in the inverse dielectric tensor is then The same equation (2.4.3.7) applies.