Comparison of Rayleigh-Taylor Growth with 1.0 Micrometers and 0.25 Micrometers Lasers.

Abstract

It is shown, through numerical simulation that the Rayleigh-Taylor growth rate in laser-ablatively accelerated targets is reduced below the classical value (kg) to the 1/2 power, by factors of 3-4 with 0.25 micrometer laser light. The simulation results are supported by an analytical expression for the growth rates. These results provide further evidence for the viability of high-aspect ratio shells in direct-drive laser fusion. Keywords: Laser ablation, Hydrodynamic instability.

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Document Details

Document Type
Technical Report
Publication Date
May 29, 1986
Accession Number
ADA168885

Entities

People

  • John H. Gardner
  • M. H. Emery
  • S. E. Bodner

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Ablation
  • Aspect Ratio
  • Classification
  • Energy
  • Fluids
  • Geometry
  • Instability
  • Intensity
  • Laser Pulses
  • Micrometers
  • Military Research
  • Photonic Metamaterials
  • Security
  • Short Wavelengths
  • Simulations
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Engineering
  • Physics

Readers

  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy