Improved frequency stability of the dual noble gas maser
Abstract
We report improved frequency stability of the dual noble gas maser. This recently developed device can measure very small changes in the Zeeman transition frequencies of co-habitating ensembles of ^129Xe and ^3He atoms, and thus may be useful for symmetry tests and precision measurements such as a search for a permanent electric dipole moment of the ^129Xe atom. Using the dual noble gas maser we measured the frequency stability (i.e. the Allan deviation) of the ^3He Zeeman transition to be approximately 100 nHz in 6,000 seconds of data acquisition. This Zeeman frequency stability is an order of magnitude improvement over our previous reports. The improved performance is a result of better system engineering and the elimination of several dominant sources of frequency instability.
- Publication:
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APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
- Pub Date:
- May 1998
- Bibcode:
- 1998APS..DMP..I608B