Measurements of the Hyperfine Structure and ΔF = +2 Transitions in Eu I by High-Resolution Diode-Laser Spectroscopy

Wei Guo Jin, Toshiaki Endo, Takashi Wakui, Haruko Uematsu, Tatsuya Minow, Hidetsugu Katsuragawa

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    High-resolution atomic-beam laser spectroscopy in Eu I has been performed using a tunable diode laser. The hyperfine structure (hfs) and isotope shift of the 4f76s2 8S7/2-4f76s6p 10P9/2 transition at 686.45 nm have been measured. The hfs constants A and B of 151Eu and 153Eu have been determined for the upper state 4f76s6p 10P9/2, and the hyperfine anomaly has been derived. The ΔF = +2 transitions, normally forbidden, have been induced by applying a magnetic field of approximately 1 G. Their intensity dependences on the magnetic field strength and on the hfs splittings agreed with the first-order perturbation theory, which considers the mixing between the closely lying hfs levels in the ground state.

    Original languageEnglish
    Pages (from-to)1905-1909
    Number of pages5
    Journaljournal of the physical society of japan
    Volume71
    Issue number8
    DOIs
    Publication statusPublished - 2002 Aug 1

    Keywords

    • High-resolution laser spectroscopy
    • Hyperfine structure
    • ΔF = ±2 transition

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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