In contrast to conventional assumption of nonexistent second-order nonlinear effects in centrosymmetric materials based on the electric dipole approximation, we theoretically and experimentally demonstrate even harmonics generation and their wavefront manipulation in nonlocal centrosymmetric metasurfaces.
Centrosymmetric Nonlocal Metasurface for Even- and Odd-Order Harmonic Generation
Carletti L.;
2025-01-01
Abstract
In contrast to conventional assumption of nonexistent second-order nonlinear effects in centrosymmetric materials based on the electric dipole approximation, we theoretically and experimentally demonstrate even harmonics generation and their wavefront manipulation in nonlocal centrosymmetric metasurfaces.File in questo prodotto:
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