Abstract
Within the Fresnel approximation we consider the formation of a speckle interferogram, sensitive to the inclination of the wave front or the derivative of the normal displacement of the object during its coherent illumination by either a diverging or converging spherical wave. This results in recording a Fourier transform speckle pattern of light diffusely scattered by the surface into the plane of the photographic place. It is shown, both theoretically and experimentally, that the sensitivity varies according to the variation of the Fourier transform scale.
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Additional information
V. V. Kuibyshev Tomsk State University. Translated from Izvestiya Vyssikh Uchebnykh Zavedenii, Fizika, No. 8, pp. 100–105, August, 1994.
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Gusev, V.G. Formation of interference patterns during double-exposure recording of lens Fourier speckles. Russ Phys J 37, 784–788 (1994). https://doi.org/10.1007/BF00559876
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DOI: https://doi.org/10.1007/BF00559876