New applications of electromagnetically induced transparency

George R. Welch

We present the study of many applications of electromagnetically induced transparency. From ultra-slow light to enhanced Brillouin scattering, the giant nonlinearity associated with this effect leads to many new and exciting experiments.

A. Kasapi, G. Y. Yin, Manoj Kumar Jain +2 more

Ningning Xu, Xueqian Zhang, Kenan Qu +5 more

Classic analog of the electromagnetically induced transparency (EIT) in metamaterials has been demonstrated extensively by its attractive potential applications in light storage, slow light and sensing. However, the counterpart of EIT, electromagnetically induced absorption (EIA) has been studied rarely in coupled metamaterial systems. Here, we present the observation of the EIA effect in a vertically coupled three-resonator metamaterial. A well-defined absorption resonance is developed in the EIT window enabling a unique double-peak transparency, due to the magnetic resonance induced by the near-field coupling of the three resonators. The analog of EIA opens up a new route to advanced photonics devices.

M. Artoni

Stephen E. Harris, G. Y. Yin, A. Kasapi +2 more

Fei Zhuang

A new application of coherent manipulation of EIT(electromagnetically induced transparency) medium is suggested,that is controlling the Brewster angle via manipulation of refractive index of electromagnetically induced transparency vapor.The EIT atomic vapor are filled on the background of two pieces glass whose refractive index is 1.5.By manipulating the refractive index of the EIT vapor via the external control field,one can obtain the controllable Brewster angle that is sensitive to the variations of external conditions(e.g.the intensity of the control field).It is shown that Controlling the Brewster angle can be achieved by choosing the specific parameters such as the Rabi frequency of control light.