Journal
NEW JOURNAL OF PHYSICS
Volume 16, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/16/3/033005
Keywords
metamaterial; superconductor; THz; ultrastrong; cyclotron
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Funding
- Swiss National Science Foundation (SNF) through the National Centre of Competence in Research Quantum Science and Technology
- Swiss National Science Foundation (SNF) [129823]
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A superconducting metasurface operating in the THz range and based on the complementary metamaterial approach is discussed. Experimental measurements as a function of temperature and magnetic field display a modulation of the metasurface with a change in transmission amplitude and frequency of the resonant features. Such a metasurface is successively used in a cavity quantum electrodynamic experiment displaying ultrastrong coupling to the cyclotron transition of two-dimensional electron gas. A finite element modeling is developed and its results are in good agreement with the experimental data. In this system a normalized coupling ratio of Omega/omega(c) = 0.27 is measured and a clear modulation of the polaritonic states as a function of the temperature is observed.
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