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 5s2S1/2−4d2D5/2 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
Original Manuscript: November 10, 1992
Published: May 1, 1993
G. P. Barwood, C. S. Edwards, P. Gill, H. A. Klein, and W. R. C. Rowley, "Observation of the 5s2S1/2−4d2D5/2 transition in a single laser-cooled trapped Sr+ ion by using an all-solid-state system of lasers," Opt. Lett. 18, 732-734 (1993)