Intrinsic nonlinear geometric phase in SHG from zincblende crystal symmetry media

We demonstrate that AlGaAs thin films and metasurfaces generate a distinct intrinsic nonlinear geometric phase in their second harmonic signals, differing significantly from previous studies on nonlinear dielectric, plasmonic, or hybrid metasurfaces. Unlike conventional observations, our study revea...

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Autors principals:	Carletti Luca, Rocco Davide, Vincenti Maria Antonietta, de Ceglia Domenico, De Angelis Costantino
Format:	Artigo
Idioma:	Inglês
Publicat:	Wiley 2024-06-01
Col·lecció:	Nanophotonics
Matèries:	second harmonic generation nonlinear nanophotonics nonlinear metasurfaces nonlinear geometric phase wavefront shaping metasurfaces
Accés en línia:	https://doi.org/10.1515/nanoph-2024-0162
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