Shearing Interferometer.

Abstract

A shearing interferometer that does not require the data analysis of interference fringe patterns which is necessary in prior art interferometers is described. With this interferometer the wavefront being analyzed is focused through a beamsplitter and the shear is performed about the center of curvature of one of the converging wavefronts. This may be accomplished by a flatsurfaced tilted mirror located at the position. The two beams are then recombined by the beamsplitter and another mirror. Another lens recollimates the beams to a detector plane.

Document Details

Document Type
Technical Report
Publication Date
Dec 23, 1976
Accession Number
ADD003506

Entities

People

  • William H. Southwell

Organizations

  • United States Department of the Air Force

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Curvature
  • Data Analysis
  • Detectors
  • Geometric Forms
  • Geometry
  • Interferometers
  • Lines (Geometry)
  • Warning Systems
  • Wavefronts

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Optical Physics and Photonics.