The switch between electromagnetically induced transparency and absorption due to the power broadening of probing field

Xiaoli Li; Chao He; Jianfei Zhang

doi:10.1117/12.871626

4 November 2010 The switch between electromagnetically induced transparency and absorption due to the power broadening of probing field

Xiaoli Li, Chao He, Jianfei Zhang

Author Affiliations +

Proceedings Volume 7846, Quantum and Nonlinear Optics; 784617 (2010) https://doi.org/10.1117/12.871626
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

In this paper we present a theoretical study of the nonlinear effect in the quasi-lambda type four-level system. The system consists of an excited state level and three ground state hyperfine levels. Probing and coupling field are coupled to between the excited state and two higher ground states, and the microwave field drives the two lower ground states which are associated with probing field. By solving the precision solutions of the equations of motion of density matrix, the absorption properties as a function of Rabi frequencies of the probing field and microwave field are given. As a result, the switch from double EIT to single EIA is found due to the power broadening of probing field. However, the splitting frequency of double EIT has some connection with the Rabi frequency of microwave field.

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Xiaoli Li, Chao He, and Jianfei Zhang "The switch between electromagnetically induced transparency and absorption due to the power broadening of probing field", Proc. SPIE 7846, Quantum and Nonlinear Optics, 784617 (4 November 2010); https://doi.org/10.1117/12.871626

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