Plasma kinetic effects of nitrogen and hydrogen addition to carbon-monoxide laser discharges

G.A. Murray, A.L.S. Smith

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The effects of the additive gases nitrogen and hydrogen on the gain, electron density, discharge voltage and positive-ion spectra of the plasmas of room-temperature sealed-off CO-He-Xe gas laser mixtures have been examined. Hydrogen affects the electron kinetics little, but its addition is always detrimental because the vibrationally excited CO is relaxed by V-T collisions. The effect of nitrogen is more complex; there is a beneficial CO-N2 vibrational pumping channel and a detrimental effect due to increased discharge voltage and hence gas heating. It is not a necessary additive for high-power laser operation.
Original languageEnglish
Pages (from-to)2125-2133
Number of pages8
JournalJournal of Physics D: Applied Physics
Volume15
Issue number11
DOIs
Publication statusPublished - 1982

Keywords

  • electric discharges
  • gas lasers
  • rotational and vibrational energy transfer
  • plasmas

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