Direct measurement of the fine-structure interval in alkali atoms using diode lasers

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dc.creatorBanerjee, Ayan
dc.creatorRapol, Umakant D.
dc.creatorNatarajan, Vasant
dc.date2002-04-06
dc.date.accessioned2026-07-07T06:21:31Z
dc.date.available2026-07-07T06:21:31Z
dc.descriptionWe demonstrate a technique for directly measuring the fine-structure interval in alkali atoms using two frequency-stabilized diode lasers. Each laser has a linewidth of order 1 MHz and precise tunability: one laser is tuned to a hyperfine transition in the D_1 line, and the other laser to a hyperfine transition in the D_2 line. The outputs of the lasers are fed into a scanning Michelson interferometer that measures the ratio of their wavelengths accurately. To illustrate the technique, we measure the fine-structure interval in Rb, and obtain a value of 237.6000(3)(5) cm^-1 for the hyperfine-free 5P_{3/2} - 5P_{1/2} interval.
dc.description3 pages, 2 figures, to be published in Applied Physics Letters, 20 May 2002 edition
dc.identifierhttps://arxiv.org/abs/physics/0204020
dc.identifierhttp://arxiv.org/abs/physics/0204020
dc.identifierApplied Physics Letters, vol. 80, no. 20, 3688-3690 (2002).
dc.identifierdoi:10.1063/1.1480890
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/95622
dc.subjectAtomic Physics
dc.titleDirect measurement of the fine-structure interval in alkali atoms using diode lasers
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