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Anisotropy and Controllable Band Structure in Suprawavelength Polaritonic Metasurfaces

Kevin Chevrier 1 Jean-Michel Benoit 1 Clémentine Symonds 1 S. k. Saikin 2, 3 J. Yuen-Zhou 4 Joel Bellessa 1
1 MNP - Matériaux et nanostructures photoniques
ILM - Institut Lumière Matière [Villeurbanne]
2 Harvard University [Cambridge]
3 KFU - Kazan Federal University
4 UC San Diego - University of California [San Diego]
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.
Keywords : Thin films Metals Plasmonics Light-matter interaction Metamaterials Optical techniques
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https://hal-univ-lyon1.archives-ouvertes.fr/hal-02367937
Contributor : Armelle Vidal <>
Submitted on : Monday, November 18, 2019 - 11:48:03 AM
Last modification on : Thursday, October 15, 2020 - 8:54:05 AM

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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, American Physical Society, 2019, 122 (17), pp.173902. ⟨10.1103/PhysRevLett.122.173902⟩. ⟨hal-02367937⟩

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