Clamped seismic metamaterials: ultra-low frequency stop bands

Y Achaoui, T Antonakakis, S Brûlé… - New Journal of …, 2017 - iopscience.iop.org
The regularity of earthquakes, their destructive power, and the nuisance of ground vibration
in urban environments, all motivate designs of defence structures to lessen the impact of …

Normalization, orthogonality, and completeness of quasinormal modes of open systems: the case of electromagnetism

C Sauvan, T Wu, R Zarouf, EA Muljarov, P Lalanne - Optics Express, 2022 - opg.optica.org
The scattering of electromagnetic waves by resonant systems is determined by the excitation
of the quasinormal modes (QNMs), ie the eigenmodes, of the system. This Review …

Quasinormal mode solvers for resonators with dispersive materials

P Lalanne, W Yan, A Gras, C Sauvan, JP Hugonin… - JOSA A, 2019 - opg.optica.org
Optical resonators are widely used in modern photonics. Their spectral response and
temporal dynamics are fundamentally driven by their natural resonances, the so-called …

Physically agnostic quasi normal mode expansion in time dispersive structures: From mechanical vibrations to nanophotonic resonances

A Nicolet, G Demésy, F Zolla, C Campos… - European Journal of …, 2023 - Elsevier
Resonances, also known as quasi normal modes (QNM) in the non-Hermitian case, play an
ubiquitous role in all domains of physics ruled by wave phenomena, notably in continuum …

Coupling theory of quasinormal modes for lossy and dispersive plasmonic nanoresonators

C Tao, J Zhu, Y Zhong, H Liu - Physical Review B, 2020 - APS
A quasinormal mode (QNM) coupling theory is proposed for a system of coupled resonators.
The theory is generally applicable to systems with energy loss and arbitrary frequency …

Extracting an accurate model for permittivity from experimental data: hunting complex poles from the real line

M Garcia-Vergara, G Demésy, F Zolla - Optics Letters, 2017 - opg.optica.org
In this Letter, we describe a very general procedure to obtain a causal fit of the permittivity of
materials from experimental data with very few parameters. Unlike other closed forms …

Photonics in highly dispersive media: the exact modal expansion

F Zolla, A Nicolet, G Demésy - Optics letters, 2018 - opg.optica.org
We present exact modal expansions for photonic systems including highly dispersive media.
The formulas, based on a simple version of the Keldyš theorem, are very general since both …

High-frequency homogenization for periodic dispersive media

M Touboul, B Vial, R Assier, S Guenneau… - arXiv preprint arXiv …, 2023 - arxiv.org
High-frequency homogenization is used to study dispersive media, containing inclusions
placed periodically, for which the properties of the material depend on the frequency …

Non-linear eigenvalue problems with GetDP and SLEPc: Eigenmode computations of frequency-dispersive photonic open structures

G Demésy, A Nicolet, B Gralak, C Geuzaine… - Computer Physics …, 2020 - Elsevier
We present a framework to solve non-linear eigenvalue problems suitable for a Finite
Element discretization. The implementation is based on the open-source finite element …

Modal analysis for nanoplasmonics with nonlocal material properties

F Binkowski, L Zschiedrich, M Hammerschmidt… - Physical Review B, 2019 - APS
Plasmonic devices with feature sizes of a few nanometers exhibit effects which can be
described by the nonlocal hydrodynamic Drude model. We demonstrate how to exploit …