Direction-Dependent Wave Transformations in Switched Artificial Moving Media
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A4 Artikkeli konferenssijulkaisussa
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en
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3
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17th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2023, pp. 235-237, International congress on advanced electromagnetic materials in microwaves and optics
Abstract
Time-invariant bi-anisotropic media have been broadly studied, revealing many interesting effects due to the presence of magnetoelectric coupling between the flux densities and fields. We expect that considering time-dependent coupling phenomena will open an alternative avenue for controlling waves and uncovering novel functionalities. In this talk, in particular, we contemplate nonstationary nondispersive artificial moving media and study wave propagation when the effective velocity parameter, as a nonreciprocal magnetoelectric coupling coefficient, vanishes abruptly in time. We show that such a temporal discontinuity results in directional effects for the energy transfer and frequency translation.Description
Funding Information: This work was supported by the Academy of Finland under grant 330260. Publisher Copyright: © 2023 IEEE.
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Mostafa, M H, Mirmoosa, M S & Tretyakov, S A 2023, Direction-Dependent Wave Transformations in Switched Artificial Moving Media. in 17th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2023. International congress on advanced electromagnetic materials in microwaves and optics, IEEE, pp. 235-237, International Congress on Artificial Materials for Novel Wave Phenomena, Chania, Greece, 11/09/2023. https://doi.org/10.1109/Metamaterials58257.2023.10289390