• DocumentCode
    1083053
  • Title

    Population inversion of Cd+excited states in the plasma of cadmium vapor vacuum arc

  • Author

    Shalev, S. ; Goldsmith, S. ; Boxman, R.L.

  • Author_Institution
    Dept. of Physics and Astronomy, Tel Aviv Univ., Tel Aviv, Israel
  • Volume
    17
  • Issue
    1
  • fYear
    1981
  • fDate
    1/1/1981 12:00:00 AM
  • Firstpage
    8
  • Lastpage
    10
  • Abstract
    Population densities of excited states in a cadmium vacuum arc plasma were investigated spectroscopically and their absolute values were calculated using absolute measurements of the spectral lines\´ intensity emitted from the plasma. A transient population inversion was observed among the ng^{2}G(n = 6-11) group of levels and between the upper and lower levels of the transitions: 6g^{2}G_{9/2} \\rightarrow 4f^{2}F_{7/2}, 10g^{2}G_{9/2} \\rightarrow 4f^{2}F_{7/2}, 11g^{2}G \\rightarrow 4f^{2}F_{7/2} , whose maximal estimated one-pass gain values are 1.75, 1.002, and 1.004, respectively.
  • Keywords
    Vacuum arcs; Cadmium; Circuits; Electrodes; Extraterrestrial measurements; Fault location; Plasma density; Plasma measurements; Spectroscopy; Tungsten; Vacuum arcs;
  • fLanguage
    English
  • Journal_Title
    Quantum Electronics, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0018-9197
  • Type

    jour

  • DOI
    10.1109/JQE.1981.1070627
  • Filename
    1070627