Current filamentation in discharge-excited F2-based excimer laser gas mixtures

D. Mathew, Hubertus M.J. Bastiaens, Klaus J. Boller, P.J.M. Peters

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Discharge instabilities in x-ray preionized F2-doped excimer laser gas mixtures are investigated using an intensified charge coupled device camera with a gating time of 300 ps. In contradiction with earlier theories and observations, it is found that the discharges in He/F2 mixtures are homogeneous only at very low concentration of F2 0.025%. We present experimental results, which prove that in He/Kr/F2 mixtures the appearance of discharge filaments is coupled with the presence of F2 rather than Kr.
Original languageEnglish
Pages (from-to)101502-1-101502-3
Number of pages3
JournalApplied physics letters
Issue number10
Publication statusPublished - 2006


  • IR-55166
  • METIS-231429


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