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Journal Articles Physical Review Letters Year : 2019

Anisotropy and Controllable Band Structure in Suprawavelength Polaritonic Metasurfaces

Abstract

In this Letter, we exploit the extended coherence length of mixed plasmon-exciton states to generate active metasurfaces. For this purpose, periodic stripes of organic dye are deposited on a continuous silver film. Typical metasurface effects, such as effective behavior and geometry sensitivity, are measured for periods exceeding the polaritonic wavelength by more than one order of magnitude. By adjusting the metasurface geometry, anisotropy, modified band structure, and unidimensional polaritons are computationally simulated and experimentally observed in reflectometry as well as in emission.
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Dates and versions

hal-02367937 , version 1 (10-12-2020)

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Kevin Chevrier, Jean-Michel Benoit, Clémentine Symonds, S. k. Saikin, J. Yuen-Zhou, et al.. Anisotropy and Controllable Band Structure in Suprawavelength Polaritonic Metasurfaces. Physical Review Letters, 2019, 122 (17), pp.173902. ⟨10.1103/PhysRevLett.122.173902⟩. ⟨hal-02367937⟩
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