All-diode-laser cooling of single Ca+ ions |
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Authors: | G Ritter S-M Bae U Eichmann |
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Institution: | (1) Max-Born-Institute for Non-Linear Optics and Short Pulse Spectroscopy, Rudower Chaussee 6, 12474 Berlin, Germany, DE |
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Abstract: | + ions. The Ca+ ions are trapped in a miniature rf Paul trap and irradiated by light from a frequency-doubled diode laser at 397 nm and by
light from a diode laser at 866 nm. We are able to cool a single ion and observe its fluorescence continuously with the laser
diode locked to the external frequency-doubling cavity. Quantum jumps in the fluorescence light of a single ion and of a small
cloud of five ions have been induced by driving the “clock” transition at 729 nm. We were able to resolve the influence of
the micromotion on the excitation spectrum of the small ion cloud.
Received: 10 July 1997/Revised version: 17 November 1997 |
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Keywords: | PACS: 42 55 Px 42 65 Ky 32 80 Pj |
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