Interaction of ultraviolet laser radiation with a xecl laser

D. B. Geohegan, A. W. McCown, J. G. Eden

Research output: Contribution to journalArticle

Abstract

A significant enhancement (up to 30%) in the output pulse energy of a XeCl laser (l = 308 nm) is observed when ultraviolet-laser radiation at 193, 248, or 351 nm is injected into the XeCl resonator before the emission of the 308-nm pulse. In each case, it appears that the enhancement hinges on the presence of impurity molecules (e.g., hydrocarbons, N2, O2) in the XeCl-laser-gas mixture. For linjectrd= 193 and 248 nm, the external radiation appears to photoionize the impurity directly, whereas, at 351 nm, the impurity is photoexcited and subsequently ionized by the discharge. Strong absorption of 248-nm radiation by the XeCl active medium is observed during and following the XeCl discharge-an effect that is also attributed to impurities.

Original languageEnglish (US)
Pages (from-to)6-930
Number of pages925
JournalJournal of the Optical Society of America B: Optical Physics
Volume2
Issue number6
DOIs
StatePublished - Jun 1985

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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