Universal behaviour of high-q fano resonances in metamaterials: terahertz to near-infrared regime

HIGHLIGHTS

• who: Wen Xiang Lim from the Conclusions In conclusion, the universal behaviour of Fano resonance in symmetry-broken resonators is investigated in asymmetric dipole barsSharp asymmetric and strong resonant lineshape were observed with, factor of at least , from the near-infrared to terahertz regime. Positive and complementary structures follow closely to the Babinet's Principle for electromagnetic fields. A standard system based on exponential decay function has been developed to characterize the behaviour of, factor under varying asymmetry parameter or Fano resonance frequency. Decay constants obtained from the exponential fittings provide insights into the rate at which . . .
  

   

  

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