Title :
Studies of laser-cooled trapped Yb/sup +/ (frequency standard)
Author :
Klein, H.A. ; Bell, A.S. ; Barwood, G.P. ; Gill, P. ; Rowley, W.R.C.
Author_Institution :
NPL, Teddington, UK
Abstract :
/sup 172/Yb/sup +/ ions in an RF trap have been laser-cooled to 2 K by driving the /sup 2/S/sub 1/2/-/sup 2/P/sub 1/2/ transition at 369.5 nm. Observations of metastable F-state populations at low pressure are reported for large numbers of Yb/sup +/ ions in the trap. A narrow-linewidth ring dye laser for probing an S-D or S-F transition in trapped Yb/sup +/ is considered.<>
Keywords :
atomic metastable states; frequency measurement; ion beams; measurement standards; radiation pressure (atoms); ytterbium; /sup 172/Yb/sup +/ ions; /sup 2/S/sub 1/2/-/sup 2/P/sub 1/2/ transition; 369.5 nm; RF trap; S-D transition; S-F transition; frequency standard; laser cooled ions; metastable F-state populations; narrow-linewidth ring dye laser; Cooling; Fluorescence; Frequency; Laser mode locking; Laser transitions; Laser tuning; Lenses; Pump lasers; Ring lasers; Temperature;
Conference_Titel :
Precision Electromagnetic Measurements, 1990. CPEM '90 Digest., Conference on
Conference_Location :
Ottawa, Ontario, Canada
DOI :
10.1109/CPEM.1990.110018
