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Coherent population trapping (CPT) versus electromagnetically induced transparency (EIT)

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Abstract

We discuss the differences between two well-studied and related phenomena – coherent population trapping (CPT) and electromagnetically induced transparency (EIT). Many differences between the two – such as the effect of power in the beams, detuning of the beams from resonance, and the use of vapor cells filled with buffer gas – are demonstrated experimentally. The experiments are done using magnetic sublevels of the 1 → 1 transition in the D2 line of 87Rb.

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Authors and Affiliations

  1. Department of Physics, Indian Institute of Science, 560 012, Bangalore, India

    Sumanta Khan, Molahalli Panidhara Kumar, Vineet Bharti & Vasant Natarajan

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  1. Sumanta Khan
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  2. Molahalli Panidhara Kumar
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  3. Vineet Bharti
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  4. Vasant Natarajan
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Correspondence to Vasant Natarajan.

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Khan, S., Kumar, M.P., Bharti, V. et al. Coherent population trapping (CPT) versus electromagnetically induced transparency (EIT). Eur. Phys. J. D 71, 38 (2017). https://doi.org/10.1140/epjd/e2017-70676-x

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  • DOI: https://doi.org/10.1140/epjd/e2017-70676-x

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