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Analog of electromagnetically induced transparency based on magnetic plasmonic artificial molecules with symmetric and antisymmetric states

We report a classical electromagnetically induced transparency (EIT) analog based on magnetic plasmonic artificial molecules consisting of magnetic localized surface plasmons and split ring resonators. The key to achieve EIT-like transparency are the excited symmetric and antisymmetric states based on bright-dark mode coupling, where the bright mode of the split ring resonator excited by incident waves is coupled to the dark mode of the neighbor spoof magnetic localized surface plasmons resonator. We conduct experiments, simulations, and analysis based on the Lorentz oscillator model. In addition, we numerically demonstrate that the EIT-like transparency can be employed to permittivity sensing applications.