Light tunneling phenomenon controlled by electromagnetically-induced-transparency-like (EIT-like) metamaterials
is investigated. The numerical results show that, when a EIT-like metamaterial layer is introduced at the interface of a
pair structure constructed by two kinds of single-negative metamaterials, the EIT-like system can give rise to the
enhancement of Q-factor of the tunneling mode. Moreover, the Q-factor can be tuned by altering paremeters of the
EIT-like metamaterial. Compared with the traditional method of increasing confinement, the presented way has the
advantages of miniaturized device volume and less transmission losses.
In this paper, we experimentally study the Rabi splitting in a subwavelength cavity constructed by single-negative (SNG)
metamaterials. First, the SNG metamaterials are fabricated by using coplanar waveguide with lumped-element series
capacitors and shunt inductors loading. Then, the subwavelength cavity is constructed based on the SNG metamaterials.
Finally, Rabi splitting in the subwavelength cavity is experimentally realized.
In this paper, the tunneling phenomenon occurring in a pair structure consisting of epsilon-negative (ENG) and
mu-negative (MNG) metamaterials is investigated. First, the ENG and MNG metamaterials are fabricated using coplanar
waveguide loading with lumped-element series capacitors and shunt inductors. Then, the tunneling phenomenon
occurring in the ENG-MNG pair is experimentally demonstrated. Finally, the properties of the tunneling mode are
studied and the results show that the tunneling frequency is independent of the pair length and the electric field of the
tunneling mode is highly localized at the interface of the ENG-MNG pair.