1 April 1995 Holographic interferometric microscope with conjugate reconstruction for measurement of three-dimensional displacements
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Abstract
A holographic microscope with conjugate reconstruction for the interferometric determination of 3-D displacement vectors is described. Three double-exposed holograms of different illumination directions recorded on one hologram plate are reconstructed conjugately, and phase-stepping techniques are used to evaluate the interferograms. Only by conjugate reconstruction it is possible to obtain a perfectly optimized interferometer for the static evaluation method. Using both phase-step and filtering techniques, the evaluation of interferograms greatly disturbed by speckle noise can be performed successfully.
Oliver Kruschke, Guenther K.G. Wernicke, Hartmut Gruber, "Holographic interferometric microscope with conjugate reconstruction for measurement of three-dimensional displacements," Optical Engineering 34(4), (1 April 1995). https://doi.org/10.1117/12.196520
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