Applied Physics B

, Volume 76, Issue 3, pp 209–213

Laser cooling and isotope-shift measurement of Zn+ with 202-nm ultraviolet coherent light

  • K. Matsubara
  • U. Tanaka
  • H. Imajo
  • S. Urabe
  • M. Watanabe

DOI: 10.1007/s00340-002-1081-7

Cite this article as:
Matsubara, K., Tanaka, U., Imajo, H. et al. Appl Phys B (2003) 76: 209. doi:10.1007/s00340-002-1081-7

Abstract.

We have laser-cooled all even isotopes of Zn+ ions confined in a linear radio-frequency ion trap, and measuredoptical isotope shifts in the 4s 2S1/2-4p 2P3/2 transition. Tunable continuous-wave coherent light near 202 nm was generated for this experiment by means of frequency conversion of light from diode and solid-state lasers. The measured isotope shifts are as follows: 66Zn+-64Zn+, 0.676(6) GHz; 68Zn+-66Zn+, 0.670(4) GHz; and 70Zn+-68Zn+, 0.568(10) GHz. In all cases, the transition line of the heavier isotope was observed at the higher frequency. The mass and the field shifts were estimated using a King plot. This is the first isotope-shift measurement in the transition involving the ground (4s 2S1/2) state of Zn+ ions.

PACS: 32.30.Jc; 32.80.Pj 

Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • K. Matsubara
    • 1
  • U. Tanaka
    • 1
  • H. Imajo
    • 1
  • S. Urabe
    • 2
  • M. Watanabe
    • 1
  1. 1.Kansai Advanced Research Center, Communications Research Laboratory, 588-2 Iwaoka, Nishi-ku, Kobe 651-2492, JapanJP
  2. 2.Department of Physical Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, JapanJP

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