Abstract

Optical activity changes the refractive indices of a crystal, and these changes should be taken into account when calculating the phase-matching angles. A method for calculating this change in refractive indices is presented and the effects on the phase-matching direction in KTiOPO₄ are shown. Although, in this case, the change is small, it may be considerably larger in other crystals.

© 1992 Optical Society of America

Simultaneous type I and type II Čerenkov-phase matched second-harmonic generation in disordered nonlinear photonic structures

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