Article (Scientific journals)
Physically agnostic quasi normal mode expansion in time dispersive structures: From mechanical vibrations to nanophotonic resonances
Nicolet, André; Demésy, Guillaume; Zolla, Frédéric et al.
2023In European Journal of Mechanics. A, Solids, 100, p. 104809
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Keywords :
Non-linear eigenvalues; Physically agnostic algorithm; Quasi normal mode expansion; Resonances; Dispersive structures; Eigen-value; Hermitians; Non linear; Non-linear eigenvalue; Normal mode expansion; Normal modes; Time dispersive; Materials Science (all); Mechanics of Materials; Mechanical Engineering; Physics and Astronomy (all); Physics - Optics; Physics - Computational Physics; 65N25, 35B34, 78-10, 78A25, 78M10, 70J10, 74S05; G.1.8
Abstract :
[en] 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 mechanics, acoustics, electrodynamics, and quantum theory. In this paper, we present a QNM expansion for dispersive systems, recently applied to photonics but based on sixty year old techniques in mechanics. The resulting numerical algorithm appears to be physically agnostic, that is independent of the considered physical problem and can therefore be implemented as a mere toolbox in a nonlinear eigenvalue computation library.
Disciplines :
Physics
Author, co-author :
Nicolet, André ;  Aix Marseille University, CNRS, Centrale Marseille, Institut Fresnel, Marseille, France
Demésy, Guillaume;  Aix Marseille University, CNRS, Centrale Marseille, Institut Fresnel, Marseille, France
Zolla, Frédéric;  Aix Marseille University, CNRS, Centrale Marseille, Institut Fresnel, Marseille, France
Campos, Carmen ;  Universitat de València, D. Didáctica de la Matemática, València, Spain
Roman, Jose E. ;  Universitat Politècnica de València, D. Sistemes Informàtics i Computació, València, Spain
Geuzaine, Christophe  ;  Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Applied and Computational Electromagnetics (ACE)
Language :
English
Title :
Physically agnostic quasi normal mode expansion in time dispersive structures: From mechanical vibrations to nanophotonic resonances
Publication date :
July 2023
Journal title :
European Journal of Mechanics. A, Solids
ISSN :
0997-7538
Publisher :
Elsevier Ltd
Volume :
100
Pages :
104809
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
AEI - Agencia Estatal de Investigación
Funding text :
Jose E. Roman was partially supported by the Spanish Agencia Estatal de Investigación under grant PID2019-107379RB-I00/AEI / 10.13039/501100011033 .
Commentary :
23 pages, 6 figures, dedicated to Natasha and Sasha Movchan on the occasion of their jubilee
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since 29 November 2024

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