Academia Sinica

William Marsh Rice University

Liangliang Dong

Jian Yang

Peter Nordlander

Din Ping Tsai

Ming Zhang

Naomi Jean Halas

Michael Semmlinger

Ming-Lun Tseng

Arash Ahmadivand

A harmonic light-generating metasurface includes a base substrate and a plurality of structures, that include nonlinear material, that are disposed in a pattern on a surface of the base substrate. Each structure of the plurality of structures individually supports a magnetic dipole mode. An electromagnetic field enhancement of the magnetic dipole mode induces generation of a harmonic signal by the plurality of structures. Alternatively, a harmonic light-generating metasurface, includes a base substrate, a supporting substrate that includes a nonlinear material, and a plurality of paired structures disposed in a pattern on a surface of the supporting substrate. Each paired structure, of the plurality of paired structures, collectively supports a toroidal dipole mode. An electromagnetic field enhancement of the toroidal dipole mode penetrates the supporting substrate to induce generation of a harmonic signal by the supporting substrate.

Harmonic light-generating metasurface

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Liangliang Dong