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The study of ultrafast magnetic phenomena underpinning the development of data storage technologies requires increasingly high spatial and temporal resolution. However, to date there is no easily accessible method that meets these criteria. Here we introduce a plasmonic source that allows for direct generation of unipolar, sub-ps, Tesla-scale magnetic pulses localized at the nanoscale.
The new type of metamaterial exploits magnetic flux quantization as a source of its nonlinear response but does not require Josephson junctions. We fabricated metamaterial from a high-Tc superconductor and report its electromagnetic characterization.
We demonstrate a direct analogy between electromagnetic properties of superconductors at frequencies up to 6 THz (superconducting gap) and plasmonic metals in the optical part of the spectrum. We also identify the existence of a surface bound mode in superconducting waveguide structures, “superconducting plasmon”, that closely connected to surface plasmon polaritons in the noble metals. This is a...
We demonstrate a millimeter-wave range metamaterial fabricated from cuprate superconductor. Two complementary metamaterial structures have been studied, which exhibit Fano resonances emerging from the collective excitation of interacting magnetic and electric dipole modes.
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