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  • Vol. 17, Iss. 16 — Aug. 15, 1992
  • pp: 1140–1142

Laser cooling of trapped Ca+ and measurement of the 3 2D5/2 state lifetime

Shinji Urabe, Masayoshi Watanabe, Hidetsuka Imajo, and Kazuhiro Hayasaka  »View Author Affiliations


Optics Letters, Vol. 17, Issue 16, pp. 1140-1142 (1992)
http://dx.doi.org/10.1364/OL.17.001140


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Abstract

We describe the laser cooling of Ca+ ions in a rf ion trap and the measurement of its 3 2D5/2 state lifetime. The ions are cooled to below 1 K by radiation from a frequency-doubled Ti:sapphire laser and a laser diode. The radiative lifetime is measured by observing the change in fluorescence when the ions, which are optically pumped to the metastable state, return to the cooling cycle. The lifetime of the 3 2D5/2 state is measured to be 0.77 ± 0.07 s.

© 1992 Optical Society of America

History
Original Manuscript: April 6, 1992
Published: August 15, 1992

Citation
Shinji Urabe, Masayoshi Watanabe, Hidetsuka Imajo, and Kazuhiro Hayasaka, "Laser cooling of trapped Ca+ and measurement of the 3 2D5/2 state lifetime," Opt. Lett. 17, 1140-1142 (1992)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-17-16-1140


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