Study of High Speed Interference Photography with Two-Dimensional Acousto-Optical Lattice Deflection

Abstract

This paper presents the principle and method of high speed interference photography by using the technique of two dimensional acousto- optical lattice deflection. The light beam carrying the interferogram is deflected into a lattice of 10x10 light spots in a time series; the interferogram is recorded on a photographic negative. The CW laser is the light source; the exposure time can be adjusted between 10(exp -5) to approximately 3x10(exp -6) s; the framing frequency was about 10(exp 5) frames/s. This method was used to record interferograms of transient-state temperature fields in an experimental study of the principle.

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Document Details

Document Type
Technical Report
Publication Date
Jul 20, 1993
Accession Number
ADA267823

Entities

People

  • Anzhi He
  • Dapeng Yan
  • Xiaowu Ni

Organizations

  • National Air and Space Intelligence Center

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Bragg Angle
  • Cameras
  • Crystal Lattices
  • Deflection
  • Deflectors
  • Diagrams
  • Dwell Time
  • Equations
  • Frequency
  • Interferograms
  • Light Sources
  • Optical Lattices
  • Photographic Negatives
  • Photography
  • Scanning
  • Two Dimensional
  • Waves

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Optical Physics and Photonics.
  • Structural Dynamics.

Technology Areas

  • Directed Energy