Ion-Acoustic Plasma Waves in rf-Discharge Lamps: Light-Shift Stabilization for Atomic Clocks

James Camparo, Charles Klimcak

Abstract:	In vapor-cell atomic clocks, long-term stability can be significantly influenced by temporal variations in a discharge lamp’s output via the light-shift. In order to stabilize the light-shift effect it is necessary to stabilize both the lamp’s brightness and its spectral output; and this in turn requires one to stabilize the lamp’s temperature and the rf-power driving the lamp. Though the lamp’s output intensity can be used as a control parameter for lamp stabilization (e.g. for lamp temperature), another is required. Here, we consider the resonant frequency of ion-acoustic plasma waves as a second control parameter for the stabilization of rf-discharge lamps.
Published in:	Proceedings of the 37th Annual Precise Time and Time Interval Systems and Applications Meeting August 29 - 31, 2005 Vancouver, Canada
Pages:	477 - 480
Cite this article:	Camparo, James, Klimcak, Charles, "Ion-Acoustic Plasma Waves in rf-Discharge Lamps: Light-Shift Stabilization for Atomic Clocks," Proceedings of the 37th Annual Precise Time and Time Interval Systems and Applications Meeting, Vancouver, Canada, August 2005, pp. 477-480.
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