waveguide. The results show that the plasmon-induced transparency (PIT) can be observed
in the ellipse-shaped resonators coupled waveguide, and the symmetric line shape at the
PIT window can be tuned by the radii of the long axis in ellipse-shaped resonators, the
coupling distance, and the symmetry broken degree. Interestingly, the radii of the long axis
for the bright mode and dark mode have opposite effect on the spectra of PIT. Our research …