Scattering from time-modulated subwavelength resonators
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Date
2024-05
Publication Type
Journal Article
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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 quasi-frequencies. 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.
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published
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480 (2289)
Pages / Article No.
20240177
Publisher
Royal Society
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Subject
time-modulated metamaterial; subwavelength resonator; scattering problem; scattering coefficient; energy conservation
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09504 - Ammari, Habib / Ammari, Habib