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Broadband enhancement of Cerenkov second harmonic generation in a sunflower spiral nonlinear photonic crystal

Liu, Shan; Switkowski, Krzysztof; Chen, Xin; Xu, Tianxiang; Krolikowski, Wieslaw; Sheng, Yan

Description

We present an experimental study on the Cerenkov second harmonic emission in a novel sunflower spiral array of ferroelectric domains in LiNbO3 crystal. The spiral patterns offer a diffusive, circularly symmetric distribution of reciprocal lattice vectors, thereby enabling enhanced emission of the Cerenkov beam in a broad spectral range. Instead of the traditional electric field poling, the sunflower spiral patterns are fabricated here by using our pioneering method of ferroelectric domain...[Show more]

CollectionsANU Research Publications
Date published: 2018-04-02
Type: Journal article
URI: http://hdl.handle.net/1885/205628
Source: Optics Express
DOI: 10.1364/OE.26.008628
Access Rights: Open Access

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