  Mechanism of the Fano resonances in planar metamaterials demonstrate based on
the coupled two-oscillator model. We have described the optical spectrums like
reflectance and transmittance near the resonances of bright mode (continuum
mode) and dark mode (discrete mode) and explained their optical properties by
the Fano formulism. the Fano formulism of the resonances in the planar
metamaterials can predict the asymmetric shape line and radiative properties
occurring in reflectance and transmittance from the coupling between bright and
dark modes.
