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Broadband cascading of second-order nonlinearity in randomized nonlinear photonic crystal

Sheng, Yan; Ma, Dongli; Ren, Mingliang; Chen, Baoqin; Roppo, V; Li, Zhiyuan; Koynov, Kaloian; Krolikowski, Wieslaw


We study both experimentally and theoretically optical parametric process in one-dimensional nonlinear photonic crystal with random variation to the sign of the second-order nonlinear coefficient. We demonstrate that the structure randomness enables broadband third-harmonic generation via cascading of two second-order nonlinear parametric wave interactions with the overall conversion efficiency higher than previously recorded in fully disordered media such as the as-grown strontium barium...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Journal of Physics D: Applied Physics
DOI: 10.1088/0022-3727/45/36/365105


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