Atomic beam diode-laser spectroscopy

Takashi Wakui, Wei Guo Jin, Kenji Hasegawa, Haruko Uematsu, Tatsuya Minowa, Hidetsugu Katsuragawa, Masanori Wakasugi

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Combined with a collimated atomic beam source, diode laser without external cavity has been used as a spectroscopic light source to study atomic hyperfine structures and isotope shifts of Ba I. Spectroscopic measurements of the 6s2 1S0 - 6s6p 3 P1 transition of Ba I have been carried out. All hyperfine peaks of Ba have been clearly seen and resolution of 50MHz has been attained. Hyperfine constants A and B of the 3P1 state of 135,137Ba have been determined. Isotope shifts of stable Ba isotopes have also been measured. From the measured isotope shifts, the 6s electron density at the nucleus has been deduced to be 76.4(53) a.u. and discussed in terms of the Hartree-Fock approximation.

Original languageEnglish
Pages (from-to)4188-4190
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number7
Publication statusPublished - 1998 Jul
Externally publishedYes


  • Atomic beam
  • Diode laser
  • Hyperfine structure
  • Isotope shift

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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