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Holographic interferometric microscope with conjugate reconstruction for measurement of three-dimensional displacements

机译:带共轭重建的全息干涉显微镜,用于测量三维位移

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摘要

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.
机译:描述了具有共轭重建的全息显微镜,用于干涉测量3-D位移矢量。共记录重建记录在一张全息图板上的三个不同照明方向的两次曝光的全息图,并使用相位步进技术评估干涉图。仅通过共轭重建,就有可能获得用于静态评估方法的完美优化的干涉仪。使用相位步进和滤波技术,可以成功地执行受斑点噪声严重干扰的干涉图的评估。

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