Title :
The strontium single ion standard: application to optical frequency measurements of the 385 THz Rb two photon transitions and the 474 THz I/sub 2//He-Ne standard
Author :
Madej, A.A. ; Bernard, J.E. ; Siemsen, K.J. ; Marmet, L. ; Latrasse, C. ; Touahri, D. ; Poulin, M. ; Allard, M. ; Tetu, M.
Author_Institution :
Inst. for Nat. Meas. Stand., Nat. Res. Council of Canada, Ottawa, Ont., Canada
Abstract :
An optical frequency standard at 445 THz, based on a single trapped Sr/sup +/ ion, has been developed and applied to the measurement of the /sup 87/Rb 5S/sub 1/2/(F/sub g/=2)-5D/sub 5/2/(F/sub e/=4) two-photon transition frequency at 385 THz. In addition, a single ion based calibration system for the 474 THz I/sub 2//He-Ne standard is described.
Keywords :
Atomic clocks; Calibration; Frequency standards; Gas lasers; Helium; Iodine; Laser cooling; Neon; Positive ions; Radiation pressure; Rubidium; Strontium; Trapped ions; Two-photon processes; /sup 87/Rb two photon transitions; 385 THz; 445 THz; 474 THz; He-Ne; I/sub 2/; I/sub 2//He-Ne standard; Rb; Sr; Zeeman component; frequency chain; laser cooled ion; miniature RF Paul trap; optical frequency measurements; optical frequency standard; reproducibility; single ion based calibration system; single trapped Sr/sup +/ ion; Charge carrier processes; Councils; Diodes; Frequency measurement; Laser stability; Laser transitions; Measurement standards; Particle beam optics; Standards development; Strontium;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location :
Sydney, NSW, Australia
Print_ISBN :
0-7803-5744-2
DOI :
10.1109/CPEM.2000.850919
