7 November 1983 Optically Pumped Ultraviolet And Infrared Lasers Driven By Exploding Metal Films And Wires
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Proceedings Volume 0380, Los Alamos Conf on Optics '83; (1983) https://doi.org/10.1117/12.934758
Event: Los Alamos Conference on Optics, 1983, New Mexico, United States
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.
© (1983) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
C. R. Jones, K. D. Ware, "Optically Pumped Ultraviolet And Infrared Lasers Driven By Exploding Metal Films And Wires", Proc. SPIE 0380, Los Alamos Conf on Optics '83, (7 November 1983); doi: 10.1117/12.934758; https://doi.org/10.1117/12.934758
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