| Issue |
EPJ Web Conf.
Volume 266, 2022
EOS Annual Meeting (EOSAM 2022)
|
|
|---|---|---|
| Article Number | 08013 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting (TOM) 8- Non-linear and Quantum Optics | |
| DOI | https://doi.org/10.1051/epjconf/202226608013 | |
| Published online | 13 October 2022 | |
https://doi.org/10.1051/epjconf/202226608013
Non-locality and single meta-atom spectroscopy in THz Landau polaritons
1 Institute for Quantum Electronics, Department of Physics, ETH Zürich, Switzerland
2 School of Physics and Astronomy, University of Southampton, UK
* Corresponding author: scalari@phys.ethz.ch
Published online: 13 October 2022
We will discuss, theoretically and experimentally, the existence of a limit to the possibility of arbitrarily increasing electromagnetic confinement in polaritonic systems, where strongly sub-wavelength fields can excite a continuum of high-momenta propagative magnetoplasmons. This leads to peculiar nonlocal polaritonic effects, as certain polaritonic features disappear and the system enters in the regime of discrete-to-continuum strong coupling. We will as well present experiments reporting spectroscopy of a single, ultrastrongly coupled, highly subwavelength resonator operating at 300 GHz.
© The Authors, published by EDP Sciences
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