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Third-harmonic generation via nonlinear Raman–Nath diffraction in nonlinear photonic crystal

Sheng, Yan; Wang, Wenjie; Shiloh, Roy; Roppo, Vito; Arie, Ady; Krolikowski, Wieslaw


We report on the observation of multiple third-harmonic conical waves generated in an annular periodically poled nonlinear photonic crystal. We show that the conical beams are formed as a result of the cascading effect involving two parametric processes that satisfy either the transverse and/or longitudinal phase-patching conditions. This is the first experimental observation of third-harmonic generation based on nonlinear Raman–Nath diffraction.

CollectionsANU Research Publications
Date published: 2011-08-15
Type: Journal article
Source: Optics Letters
DOI: 10.1364/OL.36.003266
Access Rights: Open Access


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