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Updated: Jun 11, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
Published on: June 7, 2019
Symmetry breaking and strong coupling in planar optical metamaterials
Koray Aydin1, Imogen M Pryce, Harry A Atwater
1Thomas J. Watson Laboratories of Applied Physics California Institute of Technology, Pasadena, California, USA. koray@caltech.edu
Abstract:
We demonstrate narrow transmission resonances at near-infrared wavelengths utilizing coupled asymmetric split-ring resonators (SRRs). By breaking the symmetry of the coupled SRR system, one can excite dark (subradiant) resonant modes that are not readily accessible to symmetric SRR structures. We also show that the quality factor of metamaterial resonant elements can be controlled by tailoring the degree of asymmetry. Changing the distance between asymmetric resonators changes the coupling strength and results in resonant frequency tuning due to resonance hybridization.
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