Ultrastrong Coupling of the Cyclotron Transition of a 2D Electron Gas to a THz Metamaterial

Author:

Scalari G.1,Maissen C.1,Turčinková D.1,Hagenmüller D.2,De Liberato S.2,Ciuti C.2,Reichl C.3,Schuh D.4,Wegscheider W.3,Beck M.1,Faist J.1

Affiliation:

1. Institute of Quantum Electronics, Eidgenössische Technische Hochschule Zürich, Switzerland.

2. Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Diderot-Paris 7 and CNRS, Paris, France.

3. Laboratory for Solid State Physics, Eidgenössische Technische Hochschule Zürich, Switzerland.

4. Institut für Experimentelle und Angewandte Physik, Universität Regensburg, Germany.

Abstract

Quantum Hall Meets Metamaterial Controlling and tuning light-matter interaction is crucial for fundamental studies of cavity quantum electrodynamics and for applications in classical and quantum devices. Scalari et al. (p. 1323 ) describe a system comprising an array of metamaterial split-ring resonators and a series of two-dimensional electronic gases (2DEG) formed in GaAs quantum wells. In a magnetic field, the electrons in the 2DEG performed cyclotron orbits and formed Landau levels. Strong coupling was observed between photon and magnetic cyclotron modes, producing a tunable semiconductor system for studying the light-matter interaction of two-level systems.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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