Measurement of the 2S1/22D5/2 clock transition in a single 171Yb+ ion

M. Roberts, P. Taylor, S. V. Gateva-Kostova, R. B. M. Clarke, W. R. C. Rowley, and P. Gill
Phys. Rev. A 60, 2867 – Published 1 October 1999
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Abstract

Spectroscopy of the 411-nm transition in 171Yb+ has been performed and the feasibility of its use as an optical frequency standard has been demonstrated. The 2S1/2(F=0,mF=0)2D5/2(F=2,mF=0) frequency, at zero-magnetic field, has been measured to be 729 487 779 566(153) kHz. This transition is free from the first-order Zeeman shift and has a measured second-order shift of +0.38(8) Hz/(μT)2. In addition, the hyperfine structure of the 2D5/2 level has been deduced by driving the other hyperfine components of the 411-nm transition, showing it to be inverted. The 2D5/2 hyperfine splitting, measured to be -191(2) MHz, implies an A factor of -63.6(7) MHz. These data taken in conjunction with previous work yield an isotope shift of ν171ν172=+1317.1(1.3)MHz for this transition between the 171 and 172 isotopes.

  • Received 20 November 1998

DOI:https://doi.org/10.1103/PhysRevA.60.2867

©1999 American Physical Society

Authors & Affiliations

M. Roberts1, P. Taylor1, S. V. Gateva-Kostova2, R. B. M. Clarke3, W. R. C. Rowley1, and P. Gill1

  • 1National Physical Laboratory, Queens Road, Teddington, Middlesex TW11 0LW, United Kingdom
  • 2Institute of Electronics, Boulevard Tsarigradsko Shausse 72, 1784 Sofia, Bulgaria
  • 3Department of Physics and Applied Physics, University of Strathclyde, 107 Rottenrow, Glasgow G4 0NG, United Kingdom

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Vol. 60, Iss. 4 — October 1999

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