Phys. Rev. Lett. 78, 1876–1879 (1997)Observation of an Electric Octupole Transition in a Single IonReceived 14 August 1996; published in the issue dated 10 March 1997 The 2S1/2-2F7/2 electric octupole (E3) transition in 172Yb+ has been detected by observing quantum jumps in a single laser cooled ion, stored in an electrodynamic trap. The transition frequency is 642 116 785.3(0.7) MHz (1σ). Consideration of the transition rate and laser parameters implies a 2F7/2 level lifetime of 3700 days. This is the first time an atomic E3 transition has been driven. This transition has applications as an optical frequency reference. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.78.1876
DOI:
10.1103/PhysRevLett.78.1876
PACS:
32.30.Jc, 06.30.Ft, 32.80.Pj, 42.50.Lc
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