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Spectra of a weakly driven two-level atom in an off-resonant squeezed vacuum

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Abstract.

We have derived analytical expressions for the absorption-dispersion spectra as well as the steady state fluorescence spectrum of a weakly excited single 2-level atom in a broadband squeezed vacuum. The atomic transition frequency and the central frequency of both the squeezed vacuum field and the driving field are assumed different. The absorption-dispersion and resonance fluorescence spectra are found to be very much dependent on the atomic as well as squeezed vacuum detuning and can lead to the situation of negative group velocities. Also, the resonance fluorescence spectrum is sensitive to the relative phase of squeezed vacuum and the driving field in the presence of finite detuning of the squeezed vacuum field.

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Authors and Affiliations

  1. Department of Mathematics, College of Science, University of Bahrain, P.O. Box 32038, Bahrain

    S. S. Hassan

  2. Department of Physics, University of Arkansas, AR 72701, Fayetteville, USA

    A. Joshi

  3. Department of Mathematics, Faculty of Science, Ain Shams University, Cairo, Egypt

    M. F. M. Ali

Authors
  1. S. S. Hassan
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  2. A. Joshi
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  3. M. F. M. Ali
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Corresponding author

Correspondence to S. S. Hassan.

Additional information

Received: 9 May 2003, Published online: 26 August 2003

PACS:

32.80.-t Photon interactions with atoms - 42.50.Ct Quantum description of interaction of light and matter; related experiments - 42.50.Dv Nonclassical states of the electromagnetic field, including entangled photon states; quantum state engineering and measurements

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Hassan, S.S., Joshi, A. & Ali, M.F.M. Spectra of a weakly driven two-level atom in an off-resonant squeezed vacuum. Eur. Phys. J. D 26, 301–306 (2003). https://doi.org/10.1140/epjd/e2003-00264-8

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  • DOI: https://doi.org/10.1140/epjd/e2003-00264-8

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