Cavity QED with chip-based toroidal microresonators

B. Dayan, T. Aoki, E. Wilcut, S. Kelber, W. P. Bowen, A. S. Parkins, J. R. Petta, T. J. Kippenberg, E. Ostby, K. J. Vahala, H. J. Kimble

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We report the demonstration of strong coupling between single Cesium atoms and a high-Q chip-based microresonator. Our toroidal microresonators are compact, Si chip-based whispering gallery mode resonators that confine light to small volumes with extremely low losses, and are manufactured in large numbers by standard lithographic techniques. Combined with the capability to couple efficiently light to and from these microresonators by a tapered optical fiber, toroidal microresonators offer a promising avenue towards scalable quantum networks. Experimentally, laser cooled Cs atoms are dropped onto a toroidal microresonator while a probe beam is critically coupled to the cavity mode. When an atom interacts with the cavity, it modifies the resonance spectrum of the cavity, leading to rejection of some of the probe light from the cavity, and thus to an increase in the output power. By observing such transit events while systematically detuning the cavity from the atomic resonance, we determine the maximal accessible single-photon Rabi frequency of Ω0/2π (100 ± 24) MHz. This value puts our system in the regime of strong coupling, being significantly larger than the dissipation rates in our system.

Original languageEnglish (US)
Title of host publicationQuantum Communications and Quantum Imaging V
DOIs
StatePublished - 2007
EventQuantum Communications and Quantum Imaging V - San Diego, CA, United States
Duration: Aug 26 2007Aug 28 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6710
ISSN (Print)0277-786X

Other

OtherQuantum Communications and Quantum Imaging V
CountryUnited States
CitySan Diego, CA
Period8/26/078/28/07

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • Cavity quantum electrodynamics microresonators quantum optics cold atoms

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