Electronic spectroscopy of a cold SiO+ sample: Implications for optical pumping

Patrick R. Stollenwerk, Brian C. Odom, Damian L. Kokkin, Timothy Steimle*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The dispersed fluorescence following pulsed dye laser excitation of the B2Σ+-X2Σ+ (0, 0) band of a cold sample of SiO+ has been recorded and analyzed. The branching ratios for B2Σ+ (v = 0) → X2Σ+ (v) and B2Σ+ (v = 0) → A2Πi(v) emission were determined and compared with values predicted based upon existing experimental and theoretical data. The experimentally determined branching ratios show that the B2Σ+ (v = 0) → X2Σ+ (v) transitions are somewhat less diagonal than predicted. The implications for laser cooling of a trapped sample of SiO+ using broadband laser excitation are discussed.

Original languageEnglish (US)
Pages (from-to)26-32
Number of pages7
JournalJournal of Molecular Spectroscopy
Volume332
DOIs
StatePublished - Feb 1 2017

Funding

The research at ASU has been supported by a grant from the National Science Foundation (CSDM-A; CHE-1265885)(Steimle). NSF Grant No. PHY-1404455 funded PRS and BCO for hardware and development of software used for photon counting fluorescence detection. ARO Grant No. W911NF-14-0378 funded PRS and BCO for travel and data analysis. We thank Mark Kokish for useful conversations on molecular orbital theory.

Keywords

  • Branching ratios
  • Cold sample SiO cation

ASJC Scopus subject areas

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

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