most citedEnhanced second harmonic generation in high- all-dielectric metasurfaces with backward frequency conversion

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physics.optics2024★ 20 cited

Enhanced second harmonic generation in high- all-dielectric metasurfaces with backward frequency conversion

Xu Tu, Siqi Feng, Jiajun Li +4

Here we employ the quasi-bound state in the continuum (quasi-BIC) resonance in all-dielectric metasurfaces for efficient nonlinear processes in consideration of the backward freque…