Bound-to-continuum Non-perturbative Regime for an Ultrastong Light-matter Coupling

Conference paper (2021)

Authors

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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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.