Strong coupling in a Au plasmonic antenna-SiO$_{2}$ layer system: a hybrid mode analysis
Mesoscale and Nanoscale Physics
2021-12-16 v1
Abstract
A detailed analysis of the optical response of a system accommodating several coupled modes is needed for the complete understanding of the strong coupling effect. In this paper, we report on the analysis of scattering cross section spectra of Au antennas on a SiO layer on a Si substrate in the IR region. A classical model of coupled oscillators is used for determining the resonant energies, damping rates and coupling strengths of four phonon polariton modes in the SiO layer coupled to a localized surface plasmon mode in a Au antenna. The calculated Hopfield mixing coefficients then show the contribution of the individual uncoupled modes to the hybrid modes of the coupled system.
Keywords
Cite
@article{arxiv.2112.07767,
title = {Strong coupling in a Au plasmonic antenna-SiO$_{2}$ layer system: a hybrid mode analysis},
author = {Pavel Gallina and Michal Kvapil and Jiří Liška and Andrea Konečná and Vlastimil Křápek and Radek Kalousek and Jakub Zlámal and Tomáš Šikola},
journal= {arXiv preprint arXiv:2112.07767},
year = {2021}
}