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Conference on Precision Electromagnetic Measurements

Progress report on the linear ion trap extended (LITE)

John D. Prestage, Robert L. Tjoelker, G.J. Dick, Lute Maleki

Published Dec 17, 2002• 1 citation
Publisher

Abstract

We discuss an improved architecture for a small ion trap based frequency standard. This design will reduce the size and cost of current Hg/sup +/ standards and improve the long term frequency stability. Based on our earlier work, stability of 7/spl times/10/sup -14///spl radic//spl tau/ is anticipated.>
DOI
10.1109/cpem.1994.333178

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This article describes the first operational results from the extended linear ion trap frequency standard now being developed at JPL. This new design separates the state selection/interrogation region from the more critical microwave resonance region where the multiplied local oscillator (LO) signal is compared to the stable atomic transition. Hg/sup +/ ions have been trapped, shuttled back and forth between the resonance and state selection traps. In addition, microwave transitions between the Hg/sup +/ clock levels have been driven in the resonance trap and detected in the state selection trap.