Sideband-Induced Two-Photon Transparency
CHENG Guang-Ling, HU Xiang-Ming
Department of Physics, Huazhong Normal University, Wuhan 430079
Sideband-Induced Two-Photon Transparency
CHENG Guang-Ling;HU Xiang-Ming
Department of Physics, Huazhong Normal University, Wuhan 430079
关键词 ：
42.50.Gy ,
42.50.Hz ,
32.80.Wr
Abstract ： We show that it is possible to use a single sideband to induce two-photon transparency in a three-level cascade medium. The medium simultaneously absorbs two photons as a one-step process when the middle level is far off one-photon resonance. A resonant sideband coupling on the upper transition and the two-photon one-step process drive the medium into a trapped state, and the dominant component is the ground state. Thus almost all population is trapped in the ground state and the two-photon absorption is dramatically suppressed. We present a numerical calculation for arbitrary values of the atomic and field parameters and also provide an analytic description for the required conditions.
Key words ：
42.50.Gy
42.50.Hz
32.80.Wr
出版日期: 2006-08-01
:
42.50.Gy
(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
42.50.Hz
(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
32.80.Wr
(Other multiphoton processes)
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2006, Vol. 23 
