RESOLUTION LIMITS OF FRAUNHOFER HOLOGRAPHY

Abstract

The resolution of an in-line hologram recorded with plane waves in the Fraunhofer region of a circular, opaque, particle is evaluated. From the diffraction integral for the reconstructed, real image the intensity distribution about the image is found. Criteria for determining the edge of the image in addition to determining the plane of focus are specified from the data, and the measurement accuracies are found. The inaccuracies are shown to be a result of the inability of the film to record all of the light diffracted by the particle. The reasons for this, film grain noise and its cutoff frequency and dynamic range, are explained and their relative effects compared for the various particle sizes and recording distances.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1970
Accession Number
AD0706403

Entities

People

  • Ronald A. Belz

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Bessel Functions
  • Computer Programs
  • Diffraction
  • Engineering
  • Frequency
  • Holograms
  • Holography
  • Images
  • Intensity
  • Measurement
  • Particle Size
  • Particles
  • Photographic Materials
  • Plane Waves
  • Waves

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Optical Physics and Photonics.