Evaluation of deformation vectors in holographic interferometric microscopy with conjugated reconstruction

Guenther K.G. Wernicke; Oliver Kruschke; Torsten Huth; Nazif Demoli; Hartmut Gruber

doi:10.1117/12.262409

20 December 1996 Evaluation of deformation vectors in holographic interferometric microscopy with conjugated reconstruction

Guenther K.G. Wernicke, Oliver Kruschke, Torsten Huth, Nazif Demoli, Hartmut Gruber

Author Affiliations +

Proceedings Volume 2951, Holographic and Diffractive Techniques; (1996) https://doi.org/10.1117/12.262409
Event: Advanced Imaging and Network Technologies, 1996, Berlin, Germany

Abstract

Holographic microscopy with conjugate reconstruction for the interferometric determination of three-dimensional displacement is described. Two different experimental setups for the exposure of the holographic interferograms were used, one for the application of the spatial heterodyne technique, the other for the application of phase shifting. Three holograms for different illumination directions recorded on one holographic plate are reconstructed conjugately, and spatial heterodyne technique as well as phase shift technique were 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 interferograms which are strongly disturbed by speckle noise can be performed successfully. A comparison of the results of the application of both techniques is given.

Citation Download Citation

Guenther K.G. Wernicke, Oliver Kruschke, Torsten Huth, Nazif Demoli, and Hartmut Gruber "Evaluation of deformation vectors in holographic interferometric microscopy with conjugated reconstruction", Proc. SPIE 2951, Holographic and Diffractive Techniques, (20 December 1996); https://doi.org/10.1117/12.262409

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