Title :
Probing Ca+ ions in a miniature trap
Author :
Knoop, M. ; Herbane, M. ; Houssin, M. ; Pawletko, T. ; Vedel, M. ; Vedel, F.
Author_Institution :
Provence Univ., Marseille, France
Abstract :
The electric quadrupole transition of confined Ca+ ions has been proposed as a frequency standard in the visible domain. To access metrologic conditions, we have built a cylindrical miniature trap, allowing to obtain high frequencies of motion and preparing the access to the Lamb-Dicke regime where the first order Doppler broadening is suppressed. Laser cooling and interrogation of the confined ions require lasers at 397 nm and at 729 nm. We propose the generation of these wavelengths using multimode laser diodes and a frequency-doubling set-up
Keywords :
atom-photon collisions; atomic clocks; calcium; fluorescence; frequency standards; laser cooling; optical variables measurement; particle traps; positive ions; quantum optics; radiation pressure; trapped ions; 397 nm; 729 nm; Ca; Ca+ ions; Lamb-Dicke regime; confined Ca+ ions; confined ions; cylindrical miniature trap; electric quadrupole transition; first order Doppler broadening; frequency standard; frequency-doubling set-up; laser cooling; metrologic conditions; miniature trap; multimode laser diodes; visible domain; wavelengths; Cooling; Diode lasers; Electrodes; Electron traps; Frequency; Laser beams; Logic; Ovens; Ring lasers; Solid lasers;
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.1999.841400
