Applied Physics B

, Volume 97, Issue 1, pp 27–33 | Cite as

A simplified optical lattice clock

  • N. Poli
  • M. G. Tarallo
  • M. Schioppo
  • C. W. Oates
  • G. M. Tino
Article

Abstract

Existing optical lattice clocks demonstrate a high level of performance but they remain complex experimental devices. In order to address a wider range of applications including those requiring transportable devices, it will be necessary to simplify the laser systems and reduce the amount of support hardware. Here we demonstrate two significant steps towards this goal: demonstration of clock signals from a Sr lattice clock based solely on semiconductor laser technology, and a method for finding the clock transition (based on a coincidence in atomic wavelengths) that removes the need for extensive frequency metrology hardware. Moreover, the unexpected high contrast in the signal revealed evidence of density dependent collisions in 88Sr atoms.

PACS

06.30.Ft 42.62.Fi 32.70.Jz 37.10.Jk 42.62.Eh 42.55.Px 

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • N. Poli
    • 1
  • M. G. Tarallo
    • 1
  • M. Schioppo
    • 1
  • C. W. Oates
    • 1
  • G. M. Tino
    • 1
  1. 1.Dipartimento di Fisica and LENSUniversità di Firenze, INFN-Sezione di FirenzeSesto FiorentinoItaly

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