Shadow method of scale with a-posteriori increase of measurements sensitivity

Nikolay M. Spornik; M. Yu. Serenko

doi:10.1117/12.47101

1 October 1991 Shadow method of scale with a-posteriori increase of measurements sensitivity

Nikolay M. Spornik, M. Yu. Serenko

Proceedings Volume 1508, Industrial Applications of Holographic and Speckle Measuring Techniques; (1991) https://doi.org/10.1117/12.47101
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

Abstract

The method of measurement of a derivative of a function of phase distribution in the object plane is dealt with in the paper. The method consists of recording in the phase object image plane of a one-dimensional grating defocused image and in subsequent coherent optical processing. As a result of grating image repeated coherent re-recording with filtering of lateral orders of diffraction, increase of measurement sensitivity is obtained. Experimental results, characterizing 16-times sensitivity increase of measurements, are shown.

Citation Download Citation

Nikolay M. Spornik and M. Yu. Serenko "Shadow method of scale with a-posteriori increase of measurements sensitivity", Proc. SPIE 1508, Industrial Applications of Holographic and Speckle Measuring Techniques, (1 October 1991); https://doi.org/10.1117/12.47101

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