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Proceedings Paper

Optically Pumped Ultraviolet And Infrared Lasers Driven By Exploding Metal Films And Wires
Author(s): C. R. Jones; K. D. Ware
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Paper Abstract

The 342-nm molecular iodine and 1315-nm atomic iodine lasers have been optically pumped by intense light from exploding-metal-film and exploding-wire discharges. Brightness temperatures for the exploding-film discharges were -25,000 K and for the wire discharges were -30,000 K. For the 12 laser the 3.5-cm diameter by 40-cm long pumped volume lies adjacent to the wire or film of the same length. Pressures of 1-6 torr 12 and 1-3 atm SF; CF4, or Ar were used in the stainless-steel cell. Using 20-pF capacitance charged to 40 kV, a 0.25-mm tungsten wire, 3-torr 12, and a 2-atm SF6, an energy of 2 J was obtained from the laser in a pulse of 8-Ns duration. The specific output energy was 7 J/k. Substitution of a cylin-drical A2 film for the wire, under otherwise similar conditions, led to a X10 output energy reduction. With an active volume and wire of 70-cm length greater output energies and efficiencies were obtained with similar input energy. An output pulse of 12 J and 12-ps duration was measured for a specific output energy of 18 J/ℓ. A laser energy of 110 J in a 20-us-long pulse has been measured from atomic iodine using a wire discharge along the axis of a larger cell. The active volume available was 20 cm in diameter and 80 cm in length. Input energy was 32 kJ. In similar measurements using a cylindrical AR, film for discharge initiation, the measured output energy was 40 J.

Paper Details

Date Published: 7 November 1983
PDF: 7 pages
Proc. SPIE 0380, Los Alamos Conf on Optics '83, (7 November 1983); doi: 10.1117/12.934758
Show Author Affiliations
C. R. Jones, University of California (United States)
K. D. Ware, University of California (United States)

Published in SPIE Proceedings Vol. 0380:
Los Alamos Conf on Optics '83
Robert S. McDowell; Susanne C. Stotlar, Editor(s)

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