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Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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Measurement of the s-2(1/2)-d-2(5/2) clock transition in a single yb-171(+) ion

Roberts, M. and Taylor, P. and Gateva-Kostova, S.V. and Clarke, R.B.M. and Rowley, W.R.C. and Gill, P. (1999) Measurement of the s-2(1/2)-d-2(5/2) clock transition in a single yb-171(+) ion. Physical Review A, 60 (4). pp. 2867-2872. ISSN 1094-1622

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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 ν171-ν172=+1317.1(1.3)MHz for this transition between the 171 and 172 isotopes.