The propagation of narrow packets of electromagnetic waves(EMWs) in frequency dispersive medium with the consideration of the complex refractive index is studied. It is shown that counting in the dispersion of the c...
We study the absorption-dispersion process and group index of weak probe field in a four-level Er^3+:YAG crystal.We find that the Er^3+ion concentration and incoherent pumping field can influence the absorption-dis...
Project supported by the National Natural Science Foundation of China (Grant No. 111174040);the Fundamental Research Funds for the Central Universities
We investigate the controllable group velocity of a microwave probe field in a superconductive quantum circuit(SQC) pumped by microwave fields,and the use of such a SQC function as an artificial Λ-type three-level ...
supported by the National Natural Science Foundation of China (Grant No.10874138)
We study the light propagation properties in a V-type three-level atomic system interacting with two independent broadband squeezed baths. Using the graphic method, the dependences of the absorption and the dispersion...
We investigate the influence of Doppler broadening on absorption-dispersion properties in a four-level atomic system that can evolve from a normal dispersion to an anomalous dispersion. Our results show that the absor...