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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 28, Iss. 11 — Nov. 1, 2011
  • pp: 2592–2596

Compact frequency standard based on an intracavity sample of cold cesium atoms

Stella Torres Müller, Daniel Varela Magalhães, Renato Ferracini Alves, and Vanderlei Salvador Bagnato  »View Author Affiliations


JOSA B, Vol. 28, Issue 11, pp. 2592-2596 (2011)
http://dx.doi.org/10.1364/JOSAB.28.002592


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Abstract

We have demonstrated the possibility for a compact frequency standard based on a sample of cold cesium atoms. In a cylindrical microwave cavity, the atoms are cooled and interrogated during a free expansion and then detected. The operation of this experiment is different from conventional atomic fountains since all the steps are sequentially performed in the same position of space. In this paper we report the analysis of a Ramsey pattern observed to present a ( 47 ± 5 ) Hz linewidth and a stability of ( 5 ± 0.5 ) x 10 13 τ 1 / 2 for an integration time longer than 100 s . Some of the main limitations of the standard are analyzed. This present report demonstrates considerable improvement of our previous work [ J. Opt. Soc. Am. B 25, 909 (2008)] where the atoms were in a free space and not inside a microwave cavity.

© 2011 Optical Society of America

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(020.7010) Atomic and molecular physics : Laser trapping
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3940) Instrumentation, measurement, and metrology : Metrology

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: April 28, 2011
Revised Manuscript: August 24, 2011
Manuscript Accepted: August 24, 2011
Published: October 5, 2011

Citation
Stella Torres Müller, Daniel Varela Magalhães, Renato Ferracini Alves, and Vanderlei Salvador Bagnato, "Compact frequency standard based on an intracavity sample of cold cesium atoms," J. Opt. Soc. Am. B 28, 2592-2596 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-11-2592

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