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Nonlinear Dielectric Metasurfaces for Wavefront Control

Wang, Lei; Kruk, Sergey; Koshelev, Kirill; Kravchenko, Ivan I; Luther-Davies, Barry; Kivshar, Yuri


We demonstrate Si-based metasurfaces for third-harmonic generation of an arbitrary wavefront. The nonlinear metasurfaces produce phase gradients within a full 0--2π phase range. We achieve 92% diffraction efficiency of the nonlinear wavefront control.

CollectionsANU Research Publications
Date published: 2018
Type: Conference paper
DOI: 10.1364/CLEO_SI.2018.SM4D.6


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