Title :
An optical frequency standard based on the electric octupole transition in 171Yb+
Author :
Hosaka, Kazumoto ; Webster, Stephen A. ; Blythe, Peter J. ; Stannard, Adrian ; Beaton, David ; Margolis, Helen S. ; Lea, Stephen N. ; Gill, Patrick
Author_Institution :
Nat. Phys. Lab., Teddington, UK
fDate :
4/1/2005 12:00:00 AM
Abstract :
The frequency of the 2S12/(F=0,mF=0)-2F72/(F=3,mF=0) transition in a single, trapped, laser cooled ion of 171Yb+ has been measured with an improved narrow probe laser and a femtosecond laser frequency comb generator. Our best estimate of the frequency is 642 121 496 772.3 ± 0.6 kHz by comparison with earlier measurements. The uncertainty is limited by measurement statistics and by the ac Stark shift.
Keywords :
Stark effect; frequency standards; laser cooling; laser variables measurement; measurement standards; measurement uncertainty; probes; trapped ions; ytterbium; Yb; ac Stark shift; electric octupole transition; femtosecond laser frequency comb generator; laser cooling; measurement statistics; measurement uncertainty; optical frequency standard; probe laser; trapped ions; ytterbium ion; Atom optics; Cooling; Frequency measurement; Laboratories; Laser stability; Laser transitions; Particle beam optics; Stationary state; Ultrafast optics; Ytterbium; Electric octupole transition; optical frequency standard; ytterbium ion;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2004.843319
