Quantum surface effects in strong coupling dynamics
- URL: http://arxiv.org/abs/2102.10832v2
- Date: Wed, 6 Apr 2022 00:55:55 GMT
- Title: Quantum surface effects in strong coupling dynamics
- Authors: V. Karanikolas, I. Thanopulos, J.D. Cox, T. Kuroda, J. Inoue, N.A.
Mortensen, E. Paspalakis, C. Tserkezis
- Abstract summary: Plasmons in nanostructured metals are widely utilized to trigger strong light--matter interactions with quantum light sources.
We study the role of quantum and surface effects in the plasmonic resonator.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Plasmons in nanostructured metals are widely utilized to trigger strong
light--matter interactions with quantum light sources. While the nonclassical
behavior of such quantum emitters (QEs) is well-understood in this context, the
role of quantum and surface effects in the plasmonic resonator is usually
neglected. Here, we combine the Green's tensor approach with the Feibelman
$d$-parameter formalism to theoretically explore the influence of quantum
surface effects in metal-dielectric layered nanostructures on the relaxation
dynamics of a proximal two-level QE. Having identified electron spill-out as
the dominant source of quantum effects in jellium-like metals, we focus our
study on sodium. Our results reveal a clear splitting in the emission spectrum,
indicative of having reached the strong-coupling regime, and, more importantly,
non-Markovian relaxation dynamics of the emitter. Our findings establish that
strong light--matter coupling is not suppressed by the emergence of
nonclassical surface effects in the optical response of the metal.
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