Time-Dependent Propagation of High-Energy Laser Beams through the Atmosphere: II

Abstract

Various factors that can affect thermal blooming in stagnation zones are examined, including stagnation-zone motion, longitudinal air motion in the neighborhood of the stagnation zone, and the effects of scenario noncoplanarity. Of these effects, only the last offers any reasonable hope of reducing the strong thermal blooming that normally accompanies stagnation zones; in particular, noncoplanarity should benefit multipulse more than cw beams. The methods of treating nonhorizontal winds hydrodynamically for cw and multipulse steady-state sources are discussed. Pulse "self-blooming" in the triangular pulse approximation is discussed in the context of both single and multipulse propagation. It is shown that self-blooming and multipulse blooming cannot be treated independently.

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Document Details

Document Type
Technical Report
Publication Date
May 18, 1976
Accession Number
ADA339079

Entities

People

  • J. A. Fleck Jr.
  • J. R. Morris
  • M. D. Feit

Organizations

  • Lawrence Livermore National Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Algorithms
  • Convection
  • Coordinate Systems
  • Diffraction
  • Focal Planes
  • Frequency
  • Geometry
  • High Energy
  • High Energy Lasers
  • Laser Beams
  • Lasers
  • Repetition Rate
  • Thermal Blooming
  • Two Dimensional
  • United States
  • Wind Velocity

Fields of Study

  • Physics

Readers

  • Marine Ecological Systems Migration
  • Optical Physics and Photonics.
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Directed Energy