Optical absorption spectrum of the chromium dimer cation

Measurements by photon-trap and photodissociation spectroscopy

Kazuhiro Egashira, Akira Terasaki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Optical excitation in the chromium dimer cation, Cr2 +, is investigated by photon-trap and photodissociation-action spectroscopy under a cryogenic condition in an ion trap. The former provides direct measurement of an absorption spectrum with high sensitivity, where cross sections as small as 0.4 Å2 at the maximum are detectable. The dissociation cross sections are thus compared with those of absorption quantitatively. The spectra in the 2.2-eV region obtained by both methods are found to be equivalent. The present results are consistent with our assignment that the excited state is repulsive, in contrast to a previous report suggesting predissociation.

Original languageEnglish
Pages (from-to)13-15
Number of pages3
JournalChemical Physics Letters
Volume635
DOIs
Publication statusPublished - Jul 2 2015

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Photodissociation
Photoexcitation
Chromium
Excited states
Dimers
photodissociation
Cryogenics
Light absorption
Cations
optical spectrum
Absorption spectra
chromium
optical absorption
Photons
dimers
traps
Spectroscopy
Ions
absorption spectra
cations

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Optical absorption spectrum of the chromium dimer cation : Measurements by photon-trap and photodissociation spectroscopy. / Egashira, Kazuhiro; Terasaki, Akira.

In: Chemical Physics Letters, Vol. 635, 02.07.2015, p. 13-15.

Research output: Contribution to journalArticle

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