Sandia Corporation

Lorena I Basilio

Michael B Sinclair

Larry K Warne

William L Langston

Igal Brener

Paul Gilbert Clem

Jon Ihlefeld

Salvatore Campione

Sheng Liu

William A Johnson

James C Ginn, Iii

A new monolithic resonator metasurface design achieves ultra-high Q-factors while using only one resonator per unit cell. The metasurface relies on breaking the symmetry of otherwise highly symmetric resonators to induce intra-resonator mixing of bright and dark modes (rather than inter-resonator couplings), and is scalable from the near-infrared to radio frequencies and can be easily implemented in dielectric materials. The resulting high-quality-factor Fano metasurface can be used in many sensing, spectral filtering, and modulation applications.

High quality-factor fano metasurface comprising a single resonator unit cell

Resonances can be tuned in dielectric resonators in order to construct single-resonator, negative-index metamaterials. For example, high-contrast inclusions in the form of metallic dipoles can be used to shift the first electric resonance down (in frequency) to the first magnetic resonance, or alternatively, air splits can be used to shift the first magnetic resonance up (in frequency) near the first electric resonance. Degenerate dielectric designs become especially useful in infrared- or visible-frequency applications where the resonator sizes associated with the lack of high-permittivity materials can become of sufficient size to enable propagation of higher-order lattice modes in the resulting medium.

Single-resonator double-negative metamaterial

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Albuquerque, NM, United States of America

Lorena I Basilio