Ultra-long wavelength Dirac plasmons in graphene capacitors

ORAL

Abstract

Graphene is a recognized 2D platform for plasmonics in the THz and mid-IR domains. These high-energy plasmons couple to the dielectric surface modes, giving rise to hybrid plasmon-polariton excitations. The ultra-long wavelength GHz range addresses the low energy end of the spectrum, where Dirac plasmons are damped by ohmic losses but essentially decoupled from environment. Using hBN encapsulated graphene [1], we demonstrate a plasma resonance capacitor [2] showing a quarter-wave plasmon mode, at 40 GHz, with a quality factor Q=2. The resolution of the resonant technique yields precise determinations of the electronic compressibility, kinetic inductance, and mean free-path, in good agreement with theory. The 100µm-long wavelength allows engineering of doping-modulated devices where plasmons are controlled by Klein tunneling. Downscaling for room temperature operation opens up perspectives in microwave detection for wireless communication and sensing [3].

[1] L. Banszerus et al, Nano Lett. 16, 1387 (2016)
[2] H. Graef et al., J. Phys. Mater. 1, 01LT02 (2018)
[3] D.A. Bandurin et al, arXiv:1807.04703 (2018)

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Presenters

  • David Mele

    Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure

Authors

  • David Mele

    Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure

  • Holger Graef

    Laboratoire Pierre Aigrain, Paris, France, Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure

  • Michael Rosticher

    Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure

  • Luca Banszerus

    JARA-FIT and 2nd Institute of Physics, RWTH Aachen University

  • Christoph Stampfer

    JARA-FIT and 2nd Institute of Physics, RWTH Aachen University

  • Takashi Taniguchi

    National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305 0044, Japan, National Institute for Materials Science, Advanced Materials Laboratory, National Institute for Materials Science, , 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Material Science, 1-1 Namiki, Tsukuba 305-0044, National Institute of Materials Science, NIMS, Japan, Advanced Materials Laboratory, NIMS, National Institute for Materials Science, Tsukuba, Japan, Advanced Materials Laboratory, National Institute for Materials Science, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0044, Japan, National Institute for Materials Science (NIMS), NIMS Tsukuba, NIMS, National Institute for Material Science, National Institute for Materials Science, Japan, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Japan, National Institute for Materials Science , Japan, Advanced Materials Laboratory, National Institute for Materials Science, Japan, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan, National Institute for Materials Science, Tsukuba, Ibaraki 305- 0044, Japan, National Institute for Material Science - Japan, National Institute for Materials Science, Namiki Tsukuba Ibaraki, Japan, National Institute of Material Science, Advanced Material Lab, NIMS, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Japan, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki, Japan, National Institute for Materials Science, Tsukuba, 1-1 Namiki, Tsukuba, National Institute for Materials Science, NIMS/Tsukuba, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044 Japan, National Institute for Materials Science, Namiki, 305-0044, Japan, National Institute for Material Science, Japan, Advanced Materials Laboratory, NIMS, Japan, Advanced Materials Labaratory, National Institute for Materials Science, National Institute of Material Science, 1-1 Namiki, Tsukuba, Ibaraki 205-0044, Japan, National Institute of Materials Science, Japan

  • Kenji Watanabe

    National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305 0044, Japan, Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Materials Science, Advanced Materials Laboratory, National Institute for Materials Science, , 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Material Science, 1-1 Namiki, Tsukuba 305-0044, National Institute of Materials Science, NIMS, Japan, Advanced Materials Laboratory, NIMS, National Institute for Materials Science, Tsukuba, Japan, National Institute for Materials Science, Japan, Advanced Materials Laboratory, National Institute for Materials Science, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0044, Japan, National Institute for Materials Science (NIMS), NIMS Tsukuba, National Institute for Materials Science (Japan), NIMS, National Institute for Material Science, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Japan, National Institute for Materials Science , Japan, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan., Advanced Materials Laboratory, National Institute for Materials Science, Japan, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan, National Institute for Materials Science, Tsukuba, Ibaraki 305- 0044, Japan, National Institute for Material Science - Japan, National Institute for Materials Science, Namiki Tsukuba Ibaraki, Japan, National Institute of Material Science, Advanced Material Lab, NIMS, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Japan, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki, Japan, National Institute for Materials Science, Tsukuba, 1-1 Namiki, Tsukuba, National Institute for Materials Science, NIMS/Tsukuba, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044 Japan, National Institute for Materials Science, Namiki, 305-0044, Japan, National Institute for Material Science, Japan, Advanced Materials Laboratory, NIMS, Japan, Columbia University, Advanced Materials Labaratory, National Institute for Materials Science, National Institute of Material Science, 1-1 Namiki, Tsukuba, Ibaraki 205-0044, Japan, National Institute of Materials Science, Japan

  • Erwann Bocquillon

    Laboratoire Pierre Aigrain, Ecole Normale Supérieure - CNRS, Laboratoire Pierre Aigrain, Paris, France, Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS, PSL Research University, Université Pierre et Marie Curie, Sorbonne Universités, Université Denis Diderot, Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure

  • Gwendal Fève

    Laboratoire Pierre Aigrain, Ecole Normale Supérieure (Paris), Laboratoire Pierre Aigrain, Ecole Normale Supérieure - CNRS, Laboratoire Pierre Aigrain, Paris, France, Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure

  • Jean-Marc Berroir

    Laboratoire Pierre Aigrain, Ecole Normale Supérieure - CNRS, Laboratoire Pierre Aigrain, Paris, France, Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS, PSL Research University, Université Pierre et Marie Curie, Sorbonne Universités, Université Denis Diderot, Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure

  • Edwin Hang Tong Teo

    Nanyang Technological University, Singapore, School of Electrical and Electronic Engineering, Nanyang Technological University

  • Bernard Plaçais

    Laboratoire Pierre Aigrain, Ecole Normale Supérieure - CNRS, Laboratoire Pierre Aigrain, Paris, France, Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS, PSL Research University, Université Pierre et Marie Curie, Sorbonne Universités, Université Denis Diderot, Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure