Title :
Trapping and laser cooling of Ca/sup +/ ions toward future optical frequency standards: observation of clock transitions
Author :
Urabe, S. ; Hayasaka, K. ; Watanabe, M. ; Imajo, H. ; Ohmukai, R.
Author_Institution :
Commun. Res. Lab., Kansai Adv. Res. Center, Hyogo, Japan
fDate :
June 27 1994-July 1 1994
Abstract :
Experimental results of trapping and laser cooling of Ca/sup +/ ions for future optical frequency standards are reported. Ca/sup +/ ions were trapped and laser-cooled to below 1 K. To observe the electric-quadrupole-allowed transitions (clock transitions), the laser diode operated at low temperature was developed. With this laser, the clock transitions were observed using the shelved electron double resonance method.<>
Keywords :
beam handling equipment; calcium; frequency measurement; ion beams; measurement standards; optical double resonance; particle traps; 1 K; Ca; Ca/sup +/ ions; clock transitions; electric-quadrupole-allowed transitions; laser cooling; optical frequency standards; shelved electron double resonance; trapping; Charge carrier processes; Clocks; Cooling; Diode lasers; Electron optics; Electron traps; Frequency; Laser transitions; Particle beam optics; Temperature;
Conference_Titel :
Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on
Conference_Location :
Boulder, CO, USA
Print_ISBN :
0-7803-1984-2
DOI :
10.1109/CPEM.1994.333230
