Sub-dekahertz spectroscopy of 199Hg+

James C. Bergquist; R. J. Rafac; Brent C. Young; James A. Beall; Wayne M. Itano; David J. Wineland

doi:10.1117/12.424455

3 May 2001 Sub-dekahertz spectroscopy of ¹⁹⁹Hg⁺

James C. Bergquist, R. J. Rafac, Brent C. Young, James A. Beall, Wayne M. Itano, David J. Wineland

Proceedings Volume 4269, Laser Frequency Stabilization, Standards, Measurement, and Applications; (2001) https://doi.org/10.1117/12.424455
Event: Photonics West 2001 - LASE, 2001, San Jose, CA, United States

Abstract

Using a laser that is frequency-locked to a Fabry-Perot etalon of high finesse and stability, we probed the 5d¹⁰6s ²S_1/2(F equals O, m_F equals O) $ARLR 5d⁹6s² ²D_5/2 (F equals 2, m_F equals O) electric-quadrupole transition of a single laser-cooled ¹⁹⁹Hg⁺ ion stored in a cryogenic radio-frequency ion trap. We observed Fourier-transform limited linewidths as narrow as 6.7 Hz at 282 nm (1.06 X 10¹⁵ Hz). The functional form and estimated values of some of the frequency shifts of the ²S_1/2 $ARLR ²D_5/2 clock transition (including the quadrupole shift), which have been calculated using a combination of measured atomic parameters and ab initio calculations, are given.

Citation Download Citation

James C. Bergquist, R. J. Rafac, Brent C. Young, James A. Beall, Wayne M. Itano, and David J. Wineland "Sub-dekahertz spectroscopy of ¹⁹⁹Hg⁺", Proc. SPIE 4269, Laser Frequency Stabilization, Standards, Measurement, and Applications, (3 May 2001); https://doi.org/10.1117/12.424455

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