Title :
Development of a trapped Yb+ frequency standard: efficient quenching of population trapping
Author :
Seidel, D.J. ; Maleki, L.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
31 May-2 Jun 1995
Abstract :
We report on a study to determine the efficiency of various buffer gases in quenching the population trapping states of laser excited ytterbium ions. The ions were confined in an rf/dc hybrid trap, and their 2S1/2⇔2P3/2 transition was excited with 329 nm laser light. Buffer gases used include H2, N2, CO2, Ar, and He at several different pressure regimes. We have identified N2 to be highly efficient in quenching the population of the trapping states, and thus be the most suitable buffer gas to use with ytterbium for the development of a trapped ion microwave frequency standard
Keywords :
atomic clocks; frequency measurement; measurement standards; microwave measurement; particle traps; positive ions; trapped ions; ytterbium; Ar; CO2; H2; He; N2; RF/DC hybrid trap; Yb; buffer gases; laser excited transitions; microwave frequency standard; population trapping; quenching; trapped Yb+ ions; Argon; Electron traps; Frequency; Gas lasers; Gases; Helium; Laser excitation; Metastasis; Standards development; Ytterbium;
Conference_Titel :
Frequency Control Symposium, 1995. 49th., Proceedings of the 1995 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-2500-1
DOI :
10.1109/FREQ.1995.483885
