Abstract
This paper describes trapping and laser cooling of a Ca+ ion in an rf quadrupole ion trap. A single Ca+ ion is laser cooled to below 130 mK and quantum jumps are observed by exciting the ion into the metastable D 5/2 state via the P 3/2 state. The lifetime of the metastable D 5/2 state is estimated from the distribution of the dark periods of the quantum-jump signal. Collision-induced jumps between the metastable D 3/2 state and the D 5/2 state in a background gas are also directly observed.
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References
W.M. Itano, J.C. Bergquist, D.J. Wineland: Science, 237, 612 (1987)
W. Nagourney, J. Sandberg, H. Dehmelt: Phys. Rev. Lett. 56, 2797 (1986)
Th. Sauter, W. Neuhauser, R. Blatt, P.E. Toschek: Phys. Rev. Lett. 57, 1696 (1986)
J.C. Bergquist, R.G. Hulet, W.M. Itano, D.J. Wineland: Phys. Rev. Lett. 57, 1699 (1986)
A.A. Madej, J.D. Sankey: Phys. Rev. A 41, 2621 (1990)
H.G. Dehmelt: IEEE Trans. IM-31, 83 (1982)
S. Urabe, H. Imajo, K. Hayasaka, M. Watanabe: J. Mod. Opt. 39, 417 (1992)
S. Urabe, M. Watanabe, H. Imajo, K. Hayasaka: Opt. Lett. 17, 1140 (1992)
F. Diedrich, E. Peik, J.M. Chen, W. Quint, H. Walther: Phys. Rev. Lett. 59, 2931 (1987)
R.J. Cook, H.J. Kimble: Phys. Rev. Lett. 54, 1023 (1985)
N. Vaeck, M. Godefroid, C.F. Fischer: Phys. Rev. A 46, 3704 (1992)
F. Arbes, T. Gudjons, F. Kurth, G. Werth, F. Marin, M. Inguscio: Z. Phys. D 25, 295 (1993)
C. Guet, W.R. Johnson: Phys. Rev. A 44, 1531 (1991)
H. Imajo, S. Urabe, K. Hayasaka, M. Watanabe, R. Hayashi: Appl. Phys. B, to be published
J.D. Sankey, A.A. Madej: Appl. Phys. B. 50, 433 (1990)