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.
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