Patent ID: 9685765
Date: 2017-06-20
CPC Classifications: G02B,H01S

Claim:
1. Fano metasurface, comprising: dielectric substrate comprising an intermediate layer on the substrate; a periodic two-dimensional array of single-resonator unit cells on the intermediate layer, each resonator comprising at least one perturbation in a symmetric dielectric structure wherein the at least one perturbation has a different permittivity than that of the dielectric structure material and wherein the intermediate layer has a lower permittivity than the permittivity of the dielectric structure material, wherein the resonator has an electric or magnetic dipole moment in the plane of the substrate that couples to normally incident light and at least one out-of-plane electric or magnetic dipole moment that couples in the near-field to the in-plane electric or magnetic dipole moment, whereby the out-of-plane electric or magnetic dipole moment provides a narrow spectral resonance within a broad spectral resonance provided by the in-plane electric or magnetic dipole moment.