Low-temperature opto-galvanic spectroscopy without discharges

T. J. McCarthy, M. Salvermoser, D. E. Murnick

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


A new versatile method for opto-galvanic spectroscopy is described. The method is based on sensitive detection of impedance changes in dilute plasma without the necessity for a self-sustaining discharge. A one-dimensional model for the effect in a high-pressure electron beam pumped gas is developed and tested. Test spectra for the Balmer-α transition in hydrogen, produced by resonant dissociation of excited hydrogen molecules in high pressure Ne, demonstrate the high resolution and sensitivity achievable for potential spectroscopic and chemical kinetics applications.

Original languageEnglish (US)
Pages (from-to)209-222
Number of pages14
JournalHyperfine Interactions
Issue number1-4
StatePublished - Dec 28 2003

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


  • enhanced ionization technique
  • opto-galvanic spectroscopy
  • trace element analysis


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