Fluorescence spectrum of a strongly driven single trapped ion in a cavity

ORAL

Abstract

A single trapped ytterbium ion inside a 2 mm optical cavity has been used to study the emission spectrum of a strongly driven atom-cavity system in the intermediate coupling regime. By driving the atom from the side of the cavity with a coherent laser field, the fluorescence emitted into an undriven cavity mode is observed. The cavity emission spectra are produced by scanning the cavity length for various driving strengths and laser-atom detunings. We observe the emergence of a three-peak feature of the spectrum at higher driving strengths that differs significantly from the normal single peak under weak excitation. We find that a simple convolution of the free-space Mollow triplet with the cavity transfer function does not sufficiently describe the observed spectrum, necessitating a more complete treatment by solving a strongly driven Jaynes-Cummings model with dissipation.

*This work is supported by grants from the U.S. Army Research Office with funding from IARPA and the MURI program; the NSF PIF Program; the NSF Physics Frontier Center at JQI; and the European Commission AQUTE program.

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Authors

  • Le Luo

    • JQI, University of Maryland
    • JQI, University of Maryland and NIST, College Park, MD 20742

  • Andrew Manning

    • JQI, University of Maryland
    • JQI, University of Maryland and NIST, College Park, MD 20742

  • Jonathan Sterk

    • JQI, University of Maryland
    • JQI, University of Maryland and NIST, College Park, MD 20742

  • Christopher Monroe

    • JQI: Dept of Physics, University of Maryland, and NIST
    • JQI, University of Maryland
    • Joint Quantum Institute, University of Maryland Department of Physics and National Institute of Standards and Technology, College Park, Maryland 20742
    • JQI, University of Maryland and NIST, College Park, MD 20742
    • JQI and University of Maryland

  • Peter Maunz

    • Duke University
    • ECE Department, Duke University, Durham, NC 27708