Abstract

The first application, to our knowledge, of an all-solid-state system of lasers to the study of a single cooled trapped Sr+ ion is described. Quantum jumps have been observed by driving the 674-nm 5s 2S1/2−4d 2D5/2 transition, and preliminary observations of the line shape are reported. An upper limit for the temperature of a single ion, derived from the 674-nm linewidth, was 200 mK. If non-Doppler sources of broadening such as unresolved Zeeman structure dominate, then the temperature limit would be even lower.

© 1993 Optical Society of America

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