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Enhanced second-harmonic generation in broken symmetry III-V semiconductor metasurfaces driven by Fano resonance

Vabishchevich, Polina V.; Liu, Sheng; Sinclair, Michael B.; Keeler, Gordon A.; Peake, Gregory M.; Brener, Igal B.

We use broken symmetry III-V semiconductor Fano metasurfaces to substantially improve the efficiency of second-harmonic generation (SHG) in the near infrared, compared to SHG obtained from metasurfaces created using symmetrical Mie resonators.