Long-Pulse Laser-Plasma Interactions at 10 to the 12th power -10 to the 15th power W/sq. cm.

Abstract

Laser-plasma interaction physics including absorption, plasma formation, heating, plasma expansion and energy transport, are examined for 3-nsec Nd-laser irradiances between 10 to the 12th and 10 to the 15th power W/sq.cm. Efficient energy deposition and conditions favorable to ablative acceleration are found at 10 to the 12th to 10 to the 13th power W/sq cm. whereas reduced absorption, hot electrons and fast ions are seen at 7 times 10 to the 14th power W/sq cm. Suitability of the observed physics to laser-pellet fusion is discussed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1979
Accession Number
ADA070462

Entities

People

  • Barrett H. Ripin
  • Edgar A. McLean
  • Frank C. Young
  • R. R. Whitlock
  • Stephen P.P. Obenschain

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Ablation
  • Absorption
  • Backscattering
  • Calorimeters
  • Electron Energy
  • Electrons
  • Energy
  • Heat Transmission
  • High Energy
  • Hot Spots
  • Intensity
  • Laser Beams
  • Laser Pulses
  • Measurement
  • Military Research
  • Thermal Conductivity
  • X Rays

Fields of Study

  • Physics

Readers

  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Microelectronics