Acta Optica Sinica, Volume. 30, Issue 12, 3610(2010)
Quantum Coherence Properties in Lambda Three-Level System Driven by Two Coupling Fields
Quantum coherence of a Λ-three-level scheme driven by two coupling fields is investigated. By sloving density matrix motion equations under dipole approximation and rotating wave approximation, numerical results are obtained. It is shown that the probe absorption spectrum has amplification as well as absorption when both coupling fields are resonant with corresponding resonant transitions, and it exhibits the superposition of double electromeqnetic induced absorption (EIA) and Mollow profile. The dependence of the position and intensity of the double EIA and Mollow profile on Rabi frequency of two coupling fields is investigated.The results can be accounted for dressed-state formalism. Therefore, EIA and Mollow frequency tuning can be performed by changing the intensity of the coupling fields.
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Yang Lijun, Zhao Min, Feng Xiaomin, Li Xiaoli, Zhang Lianshui. Quantum Coherence Properties in Lambda Three-Level System Driven by Two Coupling Fields[J]. Acta Optica Sinica, 2010, 30(12): 3610
Category: Quantum Optics
Received: Jan. 22, 2010
Accepted: --
Published Online: Dec. 7, 2010
The Author Email: Lijun Yang (ylijun2002@yahoo.com.cn)