Developments in Synchronous Spin-Exchange Optically Pumped NMR Gyroscopes

ORAL

Abstract

In this study, we present a spin-exchange pumped NMR comagnetometer with 131Xe, 129 Xe, and Rb atoms that is continuously polarized transverse to a pulsed bias field. Previously, we showed that both Xe species can be simultaneously excited using Rb polarization modulation (PM) or bias pulse repetition rate modulation (PDM). Here, we present developments in our modulation scheme, using a hybrid PM-PDM modulation which is combination of two modulations introduced before. This scheme achieves µHz-scale rotation sensitivity and suppresses sub-Hz magnetic field fluctuations by a factor of 1500. We will describe systematic error studies with this system.

*This work is supported by the National Science Foundation (1912543), and Northrop-Grumman Corp.

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Publication: Sorensen, S.S.; Thrasher, D.A.; Walker, T.G. A Synchronous Spin-Exchange Optically Pumped NMR-Gyroscope. Appl. Sci. 2020, 10, 7099. https://doi.org/10.3390/app10207099

Thrasher, D.A., Sorensen, S.S., & Walker, T.G. (2019). Dual-Species Synchronous Spin-Exchange Optical Pumping. arXiv e-prints, arXiv:1912.04991.

Presenters

  • Zaynab Yardim

    • University of Wisconsin - Madison

Authors

  • Zaynab Yardim

    • University of Wisconsin - Madison

  • Susan Sorensen

    • University of Wisconsin - Madison

  • Thad G Walker

    • Wisconsin
    • University of Wisconsin - Madison
    • University of Wisconsin-Madison