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

Journal article (2021)

Authors

Shima Rajabali ETH Zürich
S. Rajabali ETH Zürich
Erika Cortese University of Southampton
E. Cortese University of Southampton
Mattias Beck ETH Zürich
Simone De Liberato University of Southampton
S. de Liberato University of Southampton
Simone de Liberato University of Southampton
S. De Liberato University of Southampton
Jerome Faist ETH Zürich
Jérôme Faist ETH Zürich
J. Faist ETH Zürich
G. Scalari ETH Zürich
Giacomo Scalari ETH Zürich
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Published Date

2021

Language

English

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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.