Answers are grounded in this paper and cite their sources.
The possibility of using Cd/sup +/ ions as a microwave frequency standard whose light source is an all-solid state UV laser system is presented. The ground-state hyperfine splitting of trapped /sup 113/Cd/sup +/ ions is measured using an RF trap technique. The transition is detected using a laser microwave double-resonance method in the presence of He buffer gas. The splitting is determined to be 15 199 862 858(2) Hz. The preciseness of the value was improved over that in previous data by seven orders of magnitude. A light source of 214.5 nm is being developed by the authors for optical pumping and laser-cooling of Cd/sup +/ ions whose fundamental oscillator is based on diode lasers.
No takes yet. Share an insight, caveat, or question.
Tanaka et al. (1997) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: