Outstanding Problems in High Power Pulsed Laser/Target Interactions.

Abstract

An investigation was made of the interaction of a high-power laser beam with a target in air. A laser-supported radiation wave in the air is predicted. Models of this process were developed. An analytic model of the steady-state was compared with a transient numerical model using a one-dimensional radiation/hydrodynamic code. Comparisons with data indicate agreement for Nd-glass frequency laser radiation, but discrepancies for CO2 laser frequency. Speculations are made about the source of the discrepancy. Keywords: Laser beam in air: Laser-supported radiation wave; Laser-target interaction.

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Document Details

Document Type
Technical Report
Publication Date
Aug 26, 1986
Accession Number
ADA181122

Entities

People

  • B. E. Freeman
  • P. C. Patnaik

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Carbon Dioxide Lasers
  • Coefficients
  • Computers
  • Energy
  • Equations
  • Geometry
  • Glass Lasers
  • High Energy
  • Laser Beams
  • Laser Targets
  • Materials
  • Measurement
  • Optical Properties
  • Radiative Transfer
  • Shock Waves
  • Wave Propagation

Fields of Study

  • Engineering
  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy