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Date
2024-01Type
- Report
ETH Bibliography
yes
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Abstract
We consider wave scattering from a system of highly contrasting resonators with time-modulated material parameters. In this setting, the wave equation reduces to a system of coupled Helmholtz equations that models the scattering problem. We consider the one-dimensional setting. In order to understand the energy of the system, we prove a novel higher-order discrete, capacitance matrix approximation of the subwavelength resonant quasifrequencies. Further, we perform numerical experiments to support and illustrate our analytical results and show how periodically time-dependent material parameters affect the scattered wave field. Show more
Publication status
publishedExternal links
Journal / series
SAM Research ReportVolume
Publisher
Seminar for Applied Mathematics, ETH ZurichSubject
Time-modulated metamaterial; Subwavelength resonator; Scattering problem; Scattering coefficient; Energy conservationOrganisational unit
09504 - Ammari, Habib / Ammari, Habib
Funding
200307 - Mathematics of dielectric artificial media (SNF)
Related publications and datasets
Is supplemented by: https://github.com/rueffl/Scattering_Problem
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ETH Bibliography
yes
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