Strong Coupling between Warm Rubidium Vapor and Microcavities on an Integrated Photonic Chip

ORAL

Abstract

Second-generation quantum technologies in quantum information processing, quantum communication, and quantum sensing require the ability to coherently control the interaction between light and matter. We have developed a practical and scalable platform interfacing warm rubidium vapor with an integrated photonic microcavity to realize the strong coupling regime of cavity QED. We observed normal mode splitting, signaling the hybridization of a microring cavity mode with rubidium D-lines at a vapor temperature of 100 oC, which is equivalent to ~ 50 atoms interacting with the cavity mode (on average). We will present further studies of various cavity geometries such as slot-rings and photonic crystal rings that maximize the fraction of the cavity mode that interacts with the vapor as well as reduce the cavity mode volume, which together pave the way towards strongly-coupled single atom-single photon operation.

*We acknowledge partial funding support from the DARPA SAVaNT program (under ARO W911NF2120106) and the NIST-on-a-chip program.

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Presenters

  • Khoi T Hoang

    • Joint Quantum Institute, University of Maryland, College Park
    • Joint Quantum Institute, University of Maryland College Park

Authors

  • Khoi T Hoang

    • Joint Quantum Institute, University of Maryland, College Park
    • Joint Quantum Institute, University of Maryland College Park

  • Rahul Shrestha

    • Joint Quantum Institute, University of Maryland, College Park

  • Roy T Zektzer

    • Joint Quantum Institute, University of Maryland, College Park; National Institute of Standards and Technology
    • Joint Quantum Institute, Univ. of Maryland, College Park (United States), National Institute of Standards and Technology (United States)

  • Daron Westly

    • National Institute of Standards and Technology
    • National Institute of Standards and Technology (United States)

  • Xiyuan Lu

    • National Institute of Standards and Technology

  • Feng Zhou

    • Joint Quantum Institute, University of Maryland, College Park; National Institute of Standards and Technology

  • Sharoon Austin

    • Joint Quantum Institute, University of Maryland, College Park; Joint Center for Quantum Information and Computer Science, University of Maryland, College Park

  • Peter S Riley

    • University of Colorado Boulder; National Institute of Standards and Technology
    • Univ. of Colorado Boulder (United States), National Institute of Standards and Technology (United States)

  • Paul D Lett

    • National Institute of Standards and Technology
    • National Institute of Standards and Tech

  • Matthew T Hummon

    • National Institute of Standards and Technology Boulder

  • Alexey V Gorshkov

    • NIST and University of Maryland
    • National Institute of Standards and Technology (NIST)
    • JQI

  • Kartik A Srinivasan

    • Joint Quantum Institute, University of Maryland, College Park; National Institute of Standards and Technology
    • National Institute of Standards and Technology