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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 6 — Mar. 15, 2007
  • pp: 701–703

Two-photon frequency comb spectroscopy of the 6 s 8 s transition in cesium

P. Fendel, S. D. Bergeson, Th. Udem, and T. W. Hänsch  »View Author Affiliations


Optics Letters, Vol. 32, Issue 6, pp. 701-703 (2007)
http://dx.doi.org/10.1364/OL.32.000701


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Abstract

We report a new absolute frequency measurement of the Cs 6 s 8 s two-photon transition measured using frequency comb spectroscopy. The fractional frequency uncertainty is 5 × 10 11 , a factor of 6 better than previous results. The comb is derived from a stabilized picosecond laser and referenced to an octave-spanning femtosecond frequency comb. The relative merits of picosecond-based frequency combs are discussed, and it is shown that the AC Stark shift of the transition is determined by the average rather than the much larger peak intensity.

© 2007 Optical Society of America

OCIS Codes
(270.1670) Quantum optics : Coherent optical effects
(300.6320) Spectroscopy : Spectroscopy, high-resolution
(320.3980) Ultrafast optics : Microsecond phenomena

ToC Category:
Quantum Optics

History
Original Manuscript: November 30, 2006
Revised Manuscript: November 30, 2006
Manuscript Accepted: December 13, 2006
Published: February 15, 2007

Citation
P. Fendel, S. D. Bergeson, Th. Udem, and T. W. Hänsch, "Two-photon frequency comb spectroscopy of the 6s-8s transition in cesium," Opt. Lett. 32, 701-703 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-6-701

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