  We experimentally study the effect of near field coupling on the transmission
of light in terahertz metasurfaces, possessing slightly distinctive SRR
resonances. Our results show that the interplay between the strengths of
electric and magnetic dipoles, modulates the amplitude of resulting
electromagnetically induced transmission, probed under different types of
asymmetries in the coupled system. We employ a two-particle model to
theoretically study the influence of the near field coupling between bright and
quasi-dark modes on the transmission properties of the coupled system and we
find an excellent agreement with our observed results. Adding to the enhanced
transmission characteristics, our results provide a deeper insight into the
metamaterial analogues of atomic electromagnetically induced transparency and
offer an approach to engineer slow light devices, broadband filters and
attenuators at terahertz frequencies.
