Competition between different excitation processes of the Cd(II) 5s 2 2D5/2 state at low discharge currents in the positive column He-Cd+ laser discharge

T. Goto, Kazuhiro Hane, S. Hattori

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11 Citations (Scopus)

Abstract

The population densities of He and Cd states and electron density were measured at low discharge currents (2 to 30 mA) in the positive column He-Cd+ laser discharge. It is shown that the Penning excitation rate to the upper state of the Cd(II) 441.6 nm laser line becomes saturated for currents well below 10 mA, and that although the Penning excitation process is dominant in the region of a few mA, the stepwise excitation process from Cd(II) ground state must become the dominant one under lasing conditions.

Original languageEnglish
Article number012
Pages (from-to)587-592
Number of pages6
JournalJournal of Physics D: Applied Physics
Volume14
Issue number4
DOIs
Publication statusPublished - 1981 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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