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Broadband Third Harmonic Generation in Quadratic Media with Disordered Ferroelectric Domains

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We study nonlinear frequency generation in media with random ferroelectric domain structure. We show that randomness enables one to realize broadband third harmonic generation via cascading of two second order quasi-phase matched nonlinear processes. We investigate spatial and polarization properties of the emitted waves and find them to be in agreement with theoretical predictions.

© 2010 Optical Society of America

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