A High Flux Cold Atomic Beam for Experiments in Strongly Coupled Cavity QED

POSTER

Abstract

We present a high flux continuous source of cold atoms for cavity QED experiments in the regime of strong coupling.~ A 2D+ MOT, loaded by rubidium dispensers in a dry film coated vapor cell, loads a secondary moving-molasses MOT (MM-MOT) at a rate of 1.5*10$^{10}$ atoms/s.~ The MM-MOT provides a velocity tunable (3 to 10 m/s) high flux continuous beam.~ We direct the beam through the 64 $\mu $m waist of a high finesse optical cavity with 246 $\mu $m mirror spacing. The atom-cavity coupling rate g, cavity dissipation rate $\kappa $, and atomic decay rate $\gamma $ are (g, $\kappa $, $\gamma )$/2$\pi $ = (8, 2, 3) MHz, placing the system in the strong regime.~We are currently characterizing the source using the cavity QED system and will report its performance as a function of MOT parameters.

*Supported by the NSF

Authors

  • Basudev Roy

    • Joint Quantum Institute- Dept. of Physics University of Maryland, NIST- College Park
  • Michael Scholten

    • Joint Quantum Institute- Dept. of Physics University of Maryland, NIST- College Park
  • Luis Orozco

    • Joint Quantum Institute, Department of Physics, University of Maryland and NIST, College Park, MD 20742
    • Joint Quantum Institute, Dept. Physics, University of Maryland and NIST, College Park MD 20742, USA
    • Joint Quantum Institute, Univ. Maryland and NIST
    • Joint Quantum Institute- Dept. of Physics University of Maryland, NIST- College Park
  • Saijun Wu

    • Joint Quantum Institute- NIST, Dept. of Physics University of Maryland- Gaithersburg