Coupling between a dark and a bright eigenmode in a terahertz metamaterial

  title={Coupling between a dark and a bright eigenmode in a terahertz metamaterial},
  author={Ranjan Singh and Carsten Rockstuhl and Falk Lederer and Wenyao Zhang},
Terahertz time domain spectroscopy and rigorous simulations are used to probe the coupling between a dark and a bright plasmonic eigenmode in a metamaterial with broken symmetry. The metamaterial consists of two closely spaced split ring resonators that have their gaps in nonidentical positions within the ring. For normal incidence and a fixed polarization both lowest-order eigenmodes of the split ring resonators can be excited, although one of them has to be regarded as dark since coupling is… CONTINUE READING
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