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Cited by 386

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Broken Symmetry Dielectric Resonators for High Quality Factor Fano Metasurfaces

Open access
Campione, Salvatore, Liu, Sheng, Basilio, Lorena I., Warne, Larry K., Langston, William L., Luk, Ting S., Wendt, Joel R., Reno, John L., Keeler, Gordon A., Brener, Igal, Sinclair, Michael B.·2016·ACS Photonics

Abstract

We present a new approach to dielectric metasurface design that relies on a single resonator per unit cell and produces robust, high quality factor Fano resonances. Our approach utilizes symmetry breaking of highly symmetric resonator geometries, such as cubes, to induce couplings between the otherwise orthogonal resonator modes. In particular, we design perturbations that couple “bright” dipole modes to “dark” dipole modes whose radiative decay is suppressed by local field effects in the array. Our approach is widely scalable from the near-infrared to radio frequencies. We first unravel the Fano resonance behavior through numerical simulations of a germanium resonator-based metasurface that achieves a quality factor of ∼1300 at ∼10.8 μm. Then, we present two experimental demonstrations operating in the near-infrared (∼1 μm): a silicon-based implementation that achieves a quality factor of ∼350; and a gallium arsenide-based structure that achieves a quality factor of ∼600, the highest near-infrared quality factor experimentally demonstrated to date with this kind of metasurface. Importantly, large electromagnetic field enhancements appear within the resonators at the Fano resonant frequencies. We envision that combining high quality factor, high field enhancement resonances with nonlinear and active/gain materials such as gallium arsenide will lead to new classes of active optical devices.

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Metadata

Authors
Campione, S., Liu, S., Basilio, L. I., Warne, L. K., Langston, W. L., Luk, T. S., Wendt, J. R., Reno, J. L., Keeler, G. A., Brener, I., & Sinclair, M. B.
Venue
ACS Photonics
Published
2016-11-08
Volume
3
Issue
12
Pages
2362-2367
ISSN
2330-4022 (ISSN-L)
OpenAlex
W2487416936
Cited by
386
References
24
FWCI
8.74
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Broken Symmetry Dielectric Resonators for High Quality Factor Fano Metasurfaces. https://app.cochat.ai/papers/10.1021/acsphotonics.6b00556
The paper
Campione, S., Liu, S., Basilio, L. I., Warne, L. K., Langston, W. L., Luk, T. S., Wendt, J. R., Reno, J. L., Keeler, G. A., Brener, I., & Sinclair, M. B. (2016). Broken Symmetry Dielectric Resonators for High Quality Factor Fano Metasurfaces. ACS Photonics. https://doi.org/10.1021/acsphotonics.6b00556

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