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Applied Optics

Applied Optics


  • Vol. 33, Iss. 20 — Jul. 10, 1994
  • pp: 4373–4377

Digital recording and reconstruction of holograms in hologram interferometry and shearography

Ulf Schnars and Werner P. O. Jüptner  »View Author Affiliations

Applied Optics, Vol. 33, Issue 20, pp. 4373-4377 (1994)

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The fundamentals of digital recording and mathematical reconstruction of Fresnel holograms are described. The object is recorded in two different states, and the holograms are stored electronically with a charge-coupled-device detector. In the process of reconstruction the digitally sampled holograms are applied to the different coherent optical methods as hologram interferometry and shearography. If the holograms are superimposed and reconstructed jointly, a holographic interferogram results. If a shearing is introduced in the reconstruction process, a shearogram results. This means that the evaluation technique, e.g., hologram interferometry or shearography, can be influenced by numerical methods.

© 1994 Optical Society of America

Original Manuscript: September 27, 1993
Revised Manuscript: November 17, 1993
Published: July 10, 1994

Ulf Schnars and Werner P. O. Jüptner, "Digital recording and reconstruction of holograms in hologram interferometry and shearography," Appl. Opt. 33, 4373-4377 (1994)

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