Temporal Steadiness and Its Control in Laser Driven Shocks

Abstract

The time dependence of laser driven shocks is studied in a series of experiments on multiply-stepped solid aluminum targets using ISI smoothed laser profiles and variable shaped temporal laser pulses. The shock speed depends upon the laser pulse shape, the target thickness, and the material properties at the ablation surface. Comparisons with hydro-code calculations show good agreement to within 2% for steady-state shocks whereas comparison for non-steady shocks vary up to 40%.

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Document Details

Document Type
Technical Report
Publication Date
Dec 29, 2000
Accession Number
ADA386887

Entities

People

  • A. N. Mostovych
  • A. V. Deniz
  • Edgar A. McLean
  • L. Phillips
  • T. Lehecka

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Ablation
  • Absorbers (Materials)
  • Accuracy
  • Advanced Materials
  • Cameras
  • Equations
  • High Temperature
  • Laser Pulses
  • Lasers
  • Materials
  • Measurement
  • Physics
  • Radiation
  • Shock Waves
  • Steady State
  • Streak Cameras
  • Thickness

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy