The [557]-X2Σ+ and [561]-X2Σ+ bands of ytterbium fluoride, 174YbF

Jongseok Lim, James R. Almond, M. R. Tarbutt, Duc Trung Nguyen, Timothy C. Steimle

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


The [557] - X2Σ+(v = 0, 1, 2, 3) and the [561] - X2Σ+ (v = 2) visible electronic transitions of YbF have been recorded at a near-natural linewidth spectral resolution using both supersonically cooled and buffer-gas cooled beams. The 174YbF isotopologue spectral features were analyzed to produce a new set of spectroscopic parameters for the X2Σ+(v = 2), X2Σ+(v = 3), [557], and [561] states. This study will facilitate ongoing work to produce ultracold YbF molecules by laser cooling in order to improve measurements of the electron's electric dipole moment.

Original languageEnglish (US)
Pages (from-to)81-90
Number of pages10
JournalJournal of molecular spectroscopy
StatePublished - Aug 2017


  • Laser cooling molecules
  • Visible spectra
  • Ytterbium fluoride

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry


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