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Tailoring Čerenkov second-harmonic generation in bulk nonlinear photonic crystal

Sheng, Yan; Roppo, Vito; Kong, Qian; Kalinowski, Ksawery; Wang, Qi; Cojocaru, Crina; Trull, Jose; Krolikowski, Wieslaw


We investigate theoretically the Čerenkov-type second-harmonic generation in two-dimensional bulk nonlinear photonic crystal with longitudinal modulation of the 𝜒(2) nonlinearity. We show that in this scheme the Čerenkov radiation can be achieved simultaneously at multiple directions with comparable intensities. The angles of emission are controllable by the spatial modulation of the nonlinearity. We propose a design of the periodically poled domain pattern, which maximizes the efficiency of...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Optics Letters
DOI: 10.1364/OL.36.002593
Access Rights: Open Access


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