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Developpement d'une horloge à atomes de strontium piégés : Réalisation d'un laser ultra-stable et stabilité de fréquence

Abstract : This thesis presents the development of a new generation of optical frequency standards using trapped atoms. The clock stability will be first limited by the local oscillator noise. In the first part, different parameters such as the duty cycle are discussed to reduce these noise effects: the clock cycle time has to be optimized. With our ultra-stable laser used as a local oscillator, the clock stability could be 10^-16 tau^-1/2 which is two order of magnitude better than the best current atomic clocks. The second part describes an efficient cold strontium atoms source, which is a determinant step to shorten the atoms preparation time during the clock cycle. We also reported the frequency measurement of the clock transition 1S0-3P0 of the ^87 Sr within 15 kHz accuracy.
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https://tel.archives-ouvertes.fr/tel-00009538
Contributor : Audrey Quessada-Vial <>
Submitted on : Monday, June 20, 2005 - 1:46:44 PM
Last modification on : Wednesday, May 15, 2019 - 3:56:54 AM
Document(s) archivé(s) le : Friday, April 2, 2010 - 10:29:31 PM

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  • HAL Id : tel-00009538, version 1

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Audrey Quessada-Vial. Developpement d'une horloge à atomes de strontium piégés : Réalisation d'un laser ultra-stable et stabilité de fréquence. Physique Atomique [physics.atom-ph]. Université Pierre et Marie Curie - Paris VI, 2005. Français. ⟨tel-00009538⟩

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