Title :
Development of optical frequency standards based upon the /sup 2/S/sub 1/2/-/sup 2/D/sub 5/2/ transition in /sup 88/Sr/sup +/ and /sup 87/Sr/sup +/
Author :
Barwood, G.P. ; Gao, K. ; Gill, P. ; Huang, G. ; Klein, H.A.
Author_Institution :
Nat. Phys. Lab., Teddington, UK
Abstract :
Optical frequency standards, based on the 674 nm transition in /sup 88/Sr/sup +/ and /sup 87/Sr/sup +/ are being developed. Zeeman components in two /sup 88/Sr/sup +/ traps were compared, with stabilities of 100 Hz measured at a few tens of seconds. /sup 87/Sr/sup +/ offers "clock" transitions with no first-order Zeeman shifts and laser cooled /sup 87/Sr/sup +/ ions have been observed.
Keywords :
Zeeman effect; atomic clocks; frequency standards; laser cooling; particle traps; strontium; /sup 87/Sr/sup +/; /sup 88/Sr/sup +/; 674 nm; Sr; Zeeman shift; clock transition; ion trap; laser cooling; optical frequency standard; Charge carrier processes; Diode lasers; Frequency; Laser stability; Laser transitions; Laser tuning; Optical harmonic generation; Optical pumping; 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.2000.851116
