Electromagnetically Induced Transparency in Atoms and Molecules

Jin Jin, Guang-Ri, Chul +4 more

İsmail Bayraklı

Jin Guang-Ri, Chul Koo Kim, Kyun Nahm

We propose a new measurement scheme for the atom-molecule dark state by using electromagnetically induced transparency (EIT) technique. Based on a density-matrix formalism, we calculate the absorption coefficient numerically. The appearance of the EIT dip in the spectra profile gives clear evidence for the creation of the dark state in the atom-molecule Bose–Einstein condensate.

Angelos Lazoudis

Xiao‐gang Yin, Tianhua Feng, SenPo Yip +4 more

The coupling effects in electromagnetically induced transparency (EIT) for triatomic metamaterials are investigated at terahertz (THz) frequencies both experimentally and theoretically. We observed enhancement and cancellation of EIT with single transparency window, and also two additional ways to achieve double EIT transparency windows. One is from the hybridization between two dark atoms in a bright-dark-dark configuration. Another is from an averaged effect between absorption of the additional bright atom and the EIT from the original diatomic molecule in a bright-bright-dark configuration. It allows us to control EIT and the associated slow-light effect for THz metamaterials with high accuracy. © 2013 AIP Publishing LLC.

Y. Q. Chen, L. J. Dong, Yu Fang +4 more