Nonlocal Metasurface with Resonance-Selective Nonlinear Wavefront Shaping
We demonstrate a nonlinear nonlocal metasurface supporting quasi-trapped modes that enable helicity-dependent wavefront shaping at third-harmonic wavelengths. The geometric phase is selectively modified near resonance, revealing a mechanism for polarization-dependent nonlinear phase control.
Sedeh, Hooman [Duke University]↗