Investigation of Fluorescence vs. Transmission Readout for Three-Photon Rydberg Excitation used in Electrometry

ORAL

Abstract

Rydberg electrometry in alkali vapors typically utilizes two-photon electromagnetically induced transparency (EIT) for readout. In this type of readout, the signal from the Rydberg state is typically <5% of the total power of the probe optical field. This facet pushes signal-to-noise (SNR) down and limits sensitivity. We perform EIT and fluorescence measurements on the Rydberg state in a three-photon excitation scheme in Cesium and compare the two methods. We demonstrate the best recorded EIT sensitivity in a three-photon system to date of 30 μVm-1Hz-1/2. Furthermore, we show even better electric field sensitivity with the fluorescence measurement, down to 7 μVm-1Hz-1/2. Also, we characterize the rise and fall times of the fluorescence signal and characterize the sources of black body radiation-induced state transfer and collision-based state transfer. This measurement can help characterize different Rydberg states in a vapor cell, similar to work done in atomic beams.

*DARPA SaVANT ProgramNIST-on-a-Chip

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Presenters

  • Nikunjkumar Prajapati

    • National Institute of Standards and Technology, Boulder
    • National Institute of Standards and Technology

Authors

  • Nikunjkumar Prajapati

    • National Institute of Standards and Technology, Boulder
    • National Institute of Standards and Technology

  • Samuel Berweger

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

  • Andrew P Rotunno

    • National Institute of Standards and Technology, Boulder
    • National Institute of Standards and Technology

  • Alexandra B Artusio-Glimpse

    • National Institute of Standards and Technology, Boulder
    • National Institute of Standards and Technology

  • Noah Schlossberger

    • University of Colorado, Boulder

  • Dangka Shylla

    • University of Colorado, Boulder
    • National Institute of Standards and Technology

  • William J Watterson

    • University of Colorado, Boulder

  • Matthew T Simons

    • National Institute of Standards and Technology, Boulder
    • National Institute of Standards and Technology Boulder
    • National Institute of Standards and Technology

  • David S La Mantia

    • National Institute of Standards and Tech

  • Eric Norrgard

    • NIST

  • Stephen P Eckel

    • National Institute of Standards and Technology

  • Christopher L Holloway

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