Applied Physics B

, Volume 74, Issue 6, pp 597–601

Absolute-frequency measurement of the iodine-based length standard at 514.67 nm

  • R.J. Jones
  • W.-Y. Cheng
  • K.W. Holman
  • L. Chen
  • J.L. Hall
  • J. Ye
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DOI: 10.1007/s003400200846

Cite this article as:
Jones, R., Cheng, WY., Holman, K. et al. Appl Phys B (2002) 74: 597. doi:10.1007/s003400200846

Abstract.

The absolute frequency of the length standard at 514.67 nm based on the molecular iodine (127I2) transition of the P(13) 43-0 component a3 is measured using a self-referenced femtosecond optical comb. This frequency-based technique improves measurement precision more than 100 times compared with previous wavelength-based results. Power- and pressure-related frequency shifts have been carefully studied. The measured absolute frequency is 71.8±1.5 kHz higher than the internationally accepted value of 582490603.37±0.15 MHz, adopted by the Comité International des Poids et Mesures (CIPM) in 1997.

PACS: 06.20.-f; 06.20.Fn; 06.30.Bp; 06.30.Ft 

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  • R.J. Jones
    • 1
  • W.-Y. Cheng
    • 1
  • K.W. Holman
    • 1
  • L. Chen
    • 1
  • J.L. Hall
    • 1
  • J. Ye
    • 1
  1. 1.JILA, National Institute of Standards and Technology and University of Colorado, Boulder CO 80309-0440, USAUS

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