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Proceedings Paper

Evaluation of fringe patterns in an optimized holographic interferometric microscope with conjugated reconstruction
Author(s): Guenther K.G. Wernicke; Oliver Kruschke; Torsten Huth; Nazif Demoli; Hartmut Gruber
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Paper Abstract

Holographic microscopy with conjugate reconstruction for the interferometrie determination of three-dimensional displacement is described. Three double-exposed holograms for different illumination directions recorded on one holographic plate are reconstructed conugately , and spatial heterodyne technique was used to evaluate the interferograms. Only by conjugated reconstruction it is possible to obtain a perfectly optimized interferometer for the static evaluation method. The evaluation of strongly disturbed interferograms by speckle noise can be performed successfully. A comparison of the spatial heterodyne with the phase shift technique is given.

Paper Details

Date Published: 17 July 1996
PDF: 4 pages
Proc. SPIE 2860, Laser Interferometry VIII: Techniques and Analysis, (17 July 1996); doi: 10.1117/12.276295
Show Author Affiliations
Guenther K.G. Wernicke, Humboldt Univ. Berlin (Germany)
Oliver Kruschke, Humboldt Univ. Berlin (Germany)
Torsten Huth, Humboldt Univ. Berlin (Germany)
Nazif Demoli, Humboldt Univ. Berlin (Germany) (Croatia)
Hartmut Gruber, Humboldt Univ. Berlin (Germany)


Published in SPIE Proceedings Vol. 2860:
Laser Interferometry VIII: Techniques and Analysis
Malgorzata Kujawinska; Ryszard J. Pryputniewicz; Mitsuo Takeda, Editor(s)

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