Design and performance of an atmospheric pressure HF chemical laser

D. Chuchem, Y. Kalisky, M. Amit, I. Smilansky

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


Performance and design of an atmospheric-pressure, corona-preionized pulsed HF laser is presented. The preionization was achieved by means of a 'plasma cathode'. Two types of lasers were investigated: A short laser with effective screen area of 50 × 7 mm2, and a long laser with an effective screen area of 100 × 7 mm2. A grounded flat aluminum anode with rounded edges was placed 7 mm from the screen electrode in the short laser and at various gaps (5.8-8.3 mm) in the long laser, thus forming effective discharge volumes of 2.45 cm3 and 3.6 - 5.2 cm3, respectively. The SF6:H2:He gas ratios employed were: 7:2:91 and 5:2:93. Output pulses of up to 40 mJ energy were achieved. Electrical efficiencies up to 2.5% were obtained at about 8 mJ per cm3. The influence of the gas pressure, air contamination, the capacitor ratio and output coupling reflectivity on the laser performance was measured.

Original languageEnglish
Pages (from-to)277-281
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue numberpt 1
StatePublished - 1 Jan 1991
Externally publishedYes
Event8th International Symposium on Gas Flow and Chemical Lasers Part 1 (of 2) - Madrid, Spain
Duration: 10 Sep 199014 Sep 1990

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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