Recent studies of Ben-Gurion University high efficiency supersonic chemical oxygen-iodine laser

S. Rosenwaks, V. Rybalkin, A. Katz, B. D. Barmashenko

Research output: Contribution to journalConference articlepeer-review

Abstract

We report on recent studies aimed at improving the chemical efficiency of the supersonic chemical oxygen-iodine laser (COIL). Efficiencies around 30% for the supersonic COIL have been the state-of-the-art in the last decade. By carefully studying and optimizing the operation of the chemical generator, the mixing of reagents in different nozzles and the optical extraction efficiency, we achieved a new record (40%) for the chemical efficiency of the supersonic COIL and approached the theoretical limit for this efficiency. The effects of the partial pressure of 02 and the residence time of the flow in the generator, as well as the heating of the nozzle, are discussed and shown to be crucial in attaining this high efficiency.

Original languageEnglish
Article number15
Pages (from-to)87-95
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5777
Issue numberPART I
DOIs
StatePublished - 18 Oct 2005
EventXV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, GCL/HPL 2004 - Prague, Czech Republic
Duration: 30 Aug 20043 Sep 2004

Keywords

  • Chemical lasers
  • Iodine
  • Oxygen
  • Power lasers

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