Acta Optica Sinica, Volume. 20, Issue 3, 309(2000)

Electromagnetically Induced Two-Photon Transparency and Absorption Enhancement

[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
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    The electromagnetically induced two-photon transparency (EITT) under the control of coherent field is investigated. The effect of external coherent field on the features of two-photon absorption is discussed and the physical mechanism of eletromagnatically induced two-photon transparency and resonance absorption enhancement is analyzed. The analytical expression of second order approximation of population in the up energy level of two-photon absorption under the control of coherent field is derived from the equation of motion for the atomic density matrix. At the same time, the analytical expression of two-photon transition rate is derived by the way of perturbation theory in the dressed states representation. The effect of Doppler broadening on two-photon absorption profile is duscussed.

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    [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Electromagnetically Induced Two-Photon Transparency and Absorption Enhancement[J]. Acta Optica Sinica, 2000, 20(3): 309

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    Paper Information

    Category: Nonlinear Optics

    Received: Sep. 13, 1998

    Accepted: --

    Published Online: Aug. 9, 2006

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