Evaluation of fringe patterns in an optimized holographic interferometric microscope with conjugated reconstruction

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

doi:10.1117/12.276295

17 July 1996 Evaluation of fringe patterns in an optimized holographic interferometric microscope with conjugated reconstruction

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

Author Affiliations +

Proceedings Volume 2860, Laser Interferometry VIII: Techniques and Analysis; (1996) https://doi.org/10.1117/12.276295
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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.

Citation Download Citation

Guenther K.G. Wernicke, Oliver Kruschke, Torsten Huth, Nazif Demoli, and Hartmut Gruber "Evaluation of fringe patterns in an optimized holographic interferometric microscope with conjugated reconstruction", Proc. SPIE 2860, Laser Interferometry VIII: Techniques and Analysis, (17 July 1996); https://doi.org/10.1117/12.276295

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