Title :
Clearly resolved secular sidebands on the /sup 2/S/sub 1/2/-/sup 2/D/sub 5/2/ 674 nm clock transition in a single trapped Sr/sup +/ ion, and prospects for trapped ion frequency standards
Author :
Barwood, G.P. ; Gill, P. ; Klein, H.A. ; Rowley, W.R.C.
Author_Institution :
Nat. Phys. Lab., Teddington, UK
Abstract :
A pre-stabilised 674 nm diode laser has been narrowed by locking it to a high-finesse ULE cavity and kHz error signals have been observed. Confinement of single laser cooled Sr/sup +/ ions in a miniature RF trap has been demonstrated and micromotion reduction achieved. RF trap secular sidebands have been observed on the Sr/sup +2/S/sub 1/2/-/sup 2/D/sub 5/2/ 674 nm clock transition. The implication of these results, and similar results in other trapped ion systems will be discussed.
Keywords :
atomic clocks; cooling; frequency measurement; frequency modulation; laser cavity resonators; laser feedback; laser frequency stability; measurement standards; optical modulation; particle traps; positive ions; radiation pressure; semiconductor lasers; strontium; 674 nm; Lamb Dicke regime; Sr; clearly resolved secular sidebands; clock transition; double diode offset-lock system; error signals; high-finesse ULE cavity; laser cooled ions; micromotion reduction; miniature RF trap; modulation index; pre-stabilized diode laser; reference cavity; resonant optical feedback; single trapped Sr/sup +/ ion; trapped ion frequency standards; Clocks; Diodes; Frequency measurement; Laser transitions; Magnetic field measurement; Metrology; Ring lasers; Strontium; Wavelength measurement; Wire;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547322
