MULTIWAVELENGTH LASER PROPAGATION STUDY.

Abstract

The major objective of this program is to experimentally investigate the wavelength-dependence of turbulence effects on optical propagation through the atmosphere, and to relate the results to certain meteorological parameters, theoretical models, and model-independent dimensional analyses. The experiments are conducted with the use of simultaneous, spatially-coincident laser beams at three wavelengths in the visible and infrared spectrum, with special covariance and large-aperture receivers and real-time processing for the various statistical results. An improved, nonoptical system for the determination of the turbulent structure is also utilized. In particular, it is important that the wavelength-dependence of the saturation of scintillations be understood, and that the range of validity of the generally accepted atmospheric model be further investigated. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1969
Accession Number
AD0690921

Entities

People

  • J. Richard Kerr

Organizations

  • Oregon Health & Science University

Tags

DTIC Thesaurus Topics

  • Atmospheres
  • Covariance
  • Diffraction
  • Electromagnetic Spectra
  • Infrared Spectra
  • Laser Beams
  • Lasers
  • Saturation
  • Scintillation
  • Spectra
  • Turbulence
  • Wave Phenomena

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Computational Modeling and Simulation
  • Spectroscopy.

Technology Areas

  • Directed Energy