Replication Data for: Sharp toroidal resonances in planar terahertz metasurfaces

2020 
Toroidal dipole excitation in planar metasurface provides an alternate approach towards excitation of high Q resonances. In contrast to conventional multipoles, toroidal dipole interaction strength depends on the time derivative of the surrounding electric field. A characteristic feature of a toroidal dipole is tightly confined loops of oscillating magnetic field that curl around the fictitious arrow of a toroidal dipole vector in 3D space.
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