Phys. Rev. A 62, 012510 (2000) [6 pages]Hyperfine splitting and isotope-shift measurements within the 378-nm 6P1/2-7S1/2 transition in 203Tl and 205TlReceived 3 February 2000; published 15 June 2000 Using a frequency-doubled diode laser system, we have measured the hyperfine splitting in the (6s27s)7S1/2 excited state of the two naturally occurring thallium isotopes. For 205Tl and 203Tl we find frequency intervals of 12294.5(1.5) and 12180.5(1.8) MHz, respectively. This measurement addresses an earlier discrepancy in measured values for these intervals. At the same time, we have measured, with a factor of 50 improved precision, the 205Tl-203Tl isotope shift within the 378-nm 6P1/2-7S1/2 transition. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.62.012510
DOI:
10.1103/PhysRevA.62.012510
PACS:
32.10.Fn, 31.30.Gs, 27.80.+w
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