Paul trap for optical frequency standards

Author

Jefferts, S.R. ; Monroe, C. ; Barton, A.S. ; Wineland, D.J.

Author_Institution

Nat. Inst. of Stand. & Technol., Boulder, CO, USA

Volume

44

Issue

2

fYear

1995

fDate

4/1/1995 12:00:00 AM

Firstpage

148

Lastpage

150

Abstract

We describe a variant of the quadrupole rf (Paul) ion trap capable of localization of a trapped ion within much less than an optical wavelength (Lamb-Dicke regime). Attainment of the Lamb-Dicke regime reduces the sensitivity of the central absorption feature to atomic motion, thereby reducing an important source of noise in an optical frequency standard. The trapping potentials are generated by a high-Q, vacuum-compatible, quarter-wave resonator driven at about 240 MHz. Secular frequencies of tens of megahertz have been achieved for trapped magnesium and beryllium ions.<>

Keywords

Lamb shift; beryllium; cavity resonators; frequency measurement; magnesium; measurement standards; particle traps; resonant states; 240 MHz; Be; Lamb-Dicke regime; Mg; Paul trap; atomic motion; central absorption; localization; optical frequency standards; optical wavelength; rf ion trap; secular frequencies; sensitivity; trapped beryllium ions; trapped ion; trapped magnesium ions; trapping potentials; vacuum-compatible quarter-wave resonator; Absorption; Atom optics; Charge carrier processes; Frequency; Magnesium; Noise reduction; Optical noise; Optical resonators; Optical sensors; Particle beam optics;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.377795

Filename

377795