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Multistate Tuning
In article number 2104627, Renshaw Wang, Qi Jie Wang, Hong Liu, and co‐workers demonstrate multistate tuning of third‐harmonic generation via hybrid nonlinear metasurfaces. The metasurfaces consisting of GST–silicon split ring resonators offer a large third‐order nonlinearity in the visible range. A high Q‐factor Fano resonance of up to 125 is experimentally achieved together with...
Hybrid dielectric metasurfaces have emerged as a promising approach to enhancing near field confinement and thus high optical nonlinearity by utilizing low loss dielectric rather than relatively high loss metallic resonators. A wider range of applications can be realized if more design dimensions can be provided from material and fabrication perspectives to allow dynamic control of light. Here, tunable...
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