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Nanosecond and Picosecond Laser Irradiation of Solid Targets

  • E. D. Jones
  • G. W. Gobeli
  • J. N. Olsen
Conference paper

Abstract

The design and operating characteristics of a large Nd+3 glass laser which produces large-energy, single mode locked pulses will be discussed. With rigorous care to minimize back reflections and precise optical alignment, pulses of up to 35 joules and 3 psec FWHM have been focused onto the surface of CD2. Incident, transmitted, and reflected energies were monitored ana for targets 0.04 cm thick, 0.025% transmission and 0.4% reflection were observed for a typical 10 joule psec pulse. These values remained essentially the same for a 35 J, 3.5 nsec pulse. Measurements of ion velocity distributions at several orientations relative to the laser beam indicate considerable anisotropics, velocities back toward the laser being substantially larger than those away from the laser.

Keywords

Beam Divergence Solid Target Picosecond Pulse Focal Spot Size Expansion Energy 
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Copyright information

© Springer Science+Business Media New York 1972

Authors and Affiliations

  • E. D. Jones
    • 1
  • G. W. Gobeli
    • 1
  • J. N. Olsen
    • 1
  1. 1.Sandia LaboratoriesAlbuquerqueUSA

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