Applied physics

, Volume 11, Issue 3, pp 241–246

Beugungstheoretische Behandlung eines Differentialinterferometers für ausgedehnte Phasenobjekte

  • D. W. Branston
  • J. Mentel
Contributed Papers

DOI: 10.1007/BF00897059

Cite this article as:
Branston, D.W. & Mentel, J. Appl. Phys. (1976) 11: 241. doi:10.1007/BF00897059

A treatment of a Wollastonprism-type interferometer by diffraction theory


The diffraction theory of image construction has been used, in the case of a differential interferometer employing a Wollaston prism, to derive the position of the interference fringes in dependence upon the phase object and the prism position. This procedure is not only more correct, but proves also to be simpler than the corresponding geometric-optical treatment. An example is presented in which the fringe shift resulting from a symmetrical gas flow has been used to evaluate the gradient of the optical path perpendicular to the rotational axis of symmetry.

PACS Codes

42.30 42.80 

Copyright information

© Springer-Verlag 1976

Authors and Affiliations

  • D. W. Branston
    • 1
  • J. Mentel
    • 1
  1. 1.Siemens AG ForschungslaboratorienErlangen 2Fed. Rep. Germany

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