Clearly resolved secular sidebands on the S-2(1/2)-D-2(5/2) 674-nm clock transition in a single trapped Sr+ ion

A prestabilized 674-nm diode laser has been narrowed by locking it to a high-finesse ultra-low-expansion cavity and kilohertz error signals have been observed, Lamb-Dicke confinement of single laser cooled Sr+ ions in a miniature rf trap has been demonstrated and micromotion reduction achieved. RF trap sidebands have been observed on the Sr+ S-2(1/2)-D-2(5/2) 674 nm clock transition. The transition frequency has been measured to be (444 779 043.98 +/- 0.12) MHz (2 sigma).