PROPAGATION OF A FINITE OPTICAL BEAM IN AN INHOMOGENEOUS MEDIUM

Abstract

The Memorandum is part of a study of the effect of atmospheric turbulence on optical and infrared reconnaissance and guidance equipment. A quantitative understanding of the manner in which an initially coherent beam of finite cross section propagates is required for the prediction of the performance of various devices employing lasers for target acquisition or guidance in tactical missions, optical communication systems, and other devices. The Memorandum calculates the mean intensity distribution for an arbitrary amplitude and phase distribution in a finite aperture in both the near and far field and examines in detail the case of a uniform distribution across a circular aperture. The results should be of use to those interested in propagation theory and its applications to laser range finders, laser line scanners, communication systems, and various guidance and other systems employing an illuminating beam.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1970
Accession Number
AD0707861

Entities

People

  • R. F. Lutomirski

Organizations

  • RAND Corporation

Tags

Communities of Interest

  • Air Platforms
  • C4I

DTIC Thesaurus Topics

  • Bessel Functions
  • Communication Systems
  • Diameters
  • Differential Equations
  • Diffraction
  • Equations
  • Intensity
  • Measurement
  • Observation
  • Plane Waves
  • Refraction
  • Refractive Index
  • Scattering
  • Spectra
  • Spherical Waves
  • Turbulence
  • Wave Equations

Fields of Study

  • Physics

Readers

  • Aerospace Test and Evaluation
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy