Photodepletion spectroscopy and predissociation of the Na 3 A ′(2A1′) state

J. Wang, H. G. Krämer, M. Keil, H. Von Busch, W. Demtröder

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The A′(2A1′)←X(2E′) system of the sodium trimer Na3 was studied by photodepletion in a supersonic molecular beam, in which the ion signal of Na3+ generated by one-photon ionization of Na3 (X2E′) with an excimer laser decreased when an excimer-pumped dye laser was also applied prior to the ionizing laser to excite the neutral Na3 from the X2E′ ground state to the A′ state. Photodepletion spectra were recorded in the wavelength range 700-780 nm with a spectral resolution of 7.5 GHz of the pulsed dye laser. The strongest depletion was found at wavelengths around 740 nm with a measured depletion cross-section of about 1.2 Å2. Structures with typical widths between 10 and 30 cm-1 were observed in the photodepletion spectra and are attributed to vibronic bands in the A′ state.

Original languageEnglish
Pages (from-to)395-400
Number of pages6
JournalChemical Physics Letters
Issue number3-4
StatePublished - 26 Feb 1999
Externally publishedYes

ASJC Scopus subject areas

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


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