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A New Trapped Ion Clock Based on Hg-201(+)There are two stable odd isotopes of mercury with singly ionized hyperfine structure suitable for a microwave clock: Hg-199(+) and Hg-201(+). Virtually all trapped mercury ion clocks to date have used the 199 isotope. We have begun to investigate the viability of a trapped ion clock based on Hg-201(+). We have measured the unperturbed frequency of the (S-2)(sub 1/2) F = 1, m(sub F) = 0 to (S-2)(sub 1/2) F = 2, m(sub F) = 0 clock transition to be 29.9543658211(2) GHz. In this paper we describe initial measurements with Hg-201(+) and new applications to clocks and fundamental physics.
Document ID
20150008441
Document Type
Conference Paper
External Source(s)
Authors
Taghavi-Larigani, S. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Burt, E. A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lea, S. N. (National Physical Lab. Middlesex, United Kingdom)
Prestage, J. D. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Tjoelker, R. L. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
May 19, 2015
Publication Date
April 20, 2009
Subject Category
Instrumentation and Photography
Metals and Metallic Materials
Atomic and Molecular Physics
Meeting Information
2009 Joint Meeting of the European Frequency and Time Forum (EFTF) and the IEEE International Frequency Control (IFCS) Symposium(Besancon)
Distribution Limits
Public
Copyright
Other
Keywords
ion traps
atomic clock
mercury