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arXiv · 1611.01509

Many-body subradiant excitations in metamaterial arrays: Experiment and theory

Stewart D. Jenkins·Janne Ruostekoski·Nikitas Papasimakis·Salvatore Savo·Nikolay I. Zheludev
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Abstract

Subradiant excitations, originally predicted by Dicke, have posed a long-standing challenge in physics owing to their weak radiative coupling to environment. Here we engineer massive subradiance in planar metamaterial arrays as a spatially extended eigenmode comprising over 1000 metamolecules. By comparing the near- and far-field response in large-scale numerical simulations with those in experimental observations we identify correlated multimetamolecule subradiant states that dominate the total excitation energy. We show that spatially extended many-body subradiance can also exist in plasmonic metamaterial arrays at optical frequencies.

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Stewart D. Jenkins, Janne Ruostekoski, Nikitas Papasimakis, Salvatore Savo, Nikolay I. Zheludev. 2017-03-07. Many-body subradiant excitations in metamaterial arrays: Experiment and theory. https://doi.org/10.1103/physrevlett.119.053901

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