Bound-to-continuum non-perturbative regime for an ultrastong light-matter coupling

Journal Article (2021)
Author(s)

S. Rajabali (ETH Zürich)

E. Cortese (University of Southampton)

Mattias Beck (ETH Zürich)

S. de Liberato (University of Southampton)

J. Faist (ETH Zürich)

G. Scalari (ETH Zürich)

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Publication Year
2021
Language
English
Affiliation
External organisation

Abstract

In this work, we theoretically and experimentally show that the confinement of an electromagnetic field below critical length-scales can excite high momentum matter resonances and can ultimately limit the light-matter coupling enhancement in an ultrastrong coupling regime.

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