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Continuous monitoring of a surface slope by real-time shearing interferometry with a photorefractive crystal

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Abstract

We propose and demonstrate a new technique for measuring the temporal variations of the surface slope of an object. This real-time shearometric arrangement takes advantage of the dynamic properties of holograms in photorefractive crystals. The accuracy of the measurements should make this technique suitable for real-time structural intensity determinations.

© 2006 Optical Society of America

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