• DocumentCode
    1075523
  • Title

    Two-photon ionization of helium for 23S and 21S states

  • Author

    Sharma, R.K. ; Mathur, K.C.

  • Author_Institution
    University of Roorkee, Roorkee, India
  • Volume
    15
  • Issue
    12
  • fYear
    1979
  • fDate
    12/1/1979 12:00:00 AM
  • Firstpage
    1433
  • Lastpage
    1437
  • Abstract
    Two-photon ionization of He atom from its excited metastable 2^{3}S and 2^{1}S states is studied within the framework of the perturbation theory. Cross sections and ratios for circularly and linearly polarized laser light are obtained in the wavelength ranges 3180-3950 Å and 3650-5100 Å for 2^{3}S and 2^{1}S states, respectively. The effects of the quasi-resonant intermediate states and the states omitted in the truncated summation method are analyzed.
  • Keywords
    Gases; Laser chemistry applications; Absorption; Helium; Ionization; Laser excitation; Laser theory; Laser transitions; Light sources; Metastasis; Resonance; Ultraviolet sources;
  • fLanguage
    English
  • Journal_Title
    Quantum Electronics, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0018-9197
  • Type

    jour

  • DOI
    10.1109/JQE.1979.1069938
  • Filename
    1069938
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1075523