We show that optical magnetism, generally displayed by spatially modulated composite structures, can also occur in metamaterials with a permittivity rapidly modulated in time. Specifically, we analytically evaluate from first principles the effective dielectric and magnetic response of a temporal metamaterial. We identify and discuss the parameter regime where such temporal metamaterials can exhibit a strong effective diamagnetic response.
Optical Magnetism in Temporal Metamaterials
Castaldi G.;Galdi V.
2021-01-01
Abstract
We show that optical magnetism, generally displayed by spatially modulated composite structures, can also occur in metamaterials with a permittivity rapidly modulated in time. Specifically, we analytically evaluate from first principles the effective dielectric and magnetic response of a temporal metamaterial. We identify and discuss the parameter regime where such temporal metamaterials can exhibit a strong effective diamagnetic response.File in questo prodotto:
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