科研之友
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摘要
We introduce a novel two-oscillator model with damping factor to describe the plasmon induced transparency (PIT) in a bright-dark model plasmonic waveguide system. The damping factor gamma in the model can be calculated from metal conductor damping factor gamma(c) and dielectric damping factor gamma(d). We investigate the influence of geometry parameters and damping factor gamma on transmission spectra as well as slow-light effects in the plasmonic waveguide system. We can find an obvious PIT phenomenon and realize a considerable slow-light effect in the double-cavities system. This work may provide guidance for optical switching and plasmon-based information processing.
