公开(公告)号：US11500265B2

公开(公告)日：2022-11-15

申请号：US17281814

申请日：2019-10-01

申请人： William Marsh Rice University ,  Academia Sinica

发明人： Michael Semmlinger ,  Ming-Lun Tseng ,  Jian Yang ,  Ming Zhang ,  Din Ping Tsai ,  Liangliang Dong ,  Arash Ahmadivand ,  Peter Nordlander ,  Naomi Jean Halas

IPC分类号： G02F1/35 ,  G02F1/37

摘要： 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.