Holographic photo-elasticity: independent observation of the isochromatic and isopachic fringes for a single model subjected to only one process |
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| Authors: | B Chatelain |
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| Institution: | The author is with the Laboratoire de Physique Générale et Optique, Université de Besançon, La Bouloie, 25030 Besançon, France |
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| Abstract: | A simple holographic recording of a photo-elastic object under stress allows the isochromatics to be observed. The isopachics are obtained by double-exposure interferometry: a second traverse of the wavefront through the object after a 90° rotation of its polarization by a Faraday cell eliminates the unwanted isochromatics. |
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