Title :
Development of an optical frequency standard based upon the 2 S1/2-2D5/2 transition in Sr+
Author :
Barwood, Gp ; Gill, P. ; Huang, G. ; Klein, HA
Author_Institution :
Centre for Basic, Thermal & Length Metrol., Nat. Phys. Lab., Teddington, UK
Abstract :
Recent work is presented on the development of an optical frequency standard, based on the 2S1/2-2D5/2 transition at 674 nm in 88Sr+. Work on characterising the probe laser is also presented and the observed linewidth of one of the Δm=0 Zeeman components of the 674 nm transition is 290 Hz. Two traps have been operated simultaneously and a null offset between them confirmed at the 3 parts in 1013 level. The feasibility of cooling and probing 87Sr+ is also discussed
Keywords :
Zeeman effect; atom-photon collisions; frequency standards; laser cooling; optical variables measurement; particle traps; positive ions; quantum optics; radiation pressure; spectral line breadth; strontium; trapped ions; visible spectra; 290 Hz; 674 nm; 2S1/2-2D5/2 transition; 87Sr+; 88Sr+; Sr; Sr+; Zeeman components; cooling; linewidth; null offset; optical frequency; optical frequency standard; probe laser; probing; Diode lasers; Frequency; Laser transitions; Optical harmonic generation; Optical pumping; Particle beam optics; Probes; Pump lasers; Standards development; Strontium;
Conference_Titel :
Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European
Conference_Location :
Besancon
Print_ISBN :
0-7803-5400-1
DOI :
10.1109/FREQ.1999.841398
