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arXiv · 1303.3792

Homometry in the light of coherent beams

Sylvain Ravy
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Abstract

Two systems are homometric if they are indistinguishable by diffraction. We first make a distinction between Bragg and diffuse scattering homometry, and show that in the last case, coherent diffraction can allow the diffraction diagrams to be differentiated. The study of the Rudin-Shapiro sequence, homometric to random sequences, allows one to manipulate independently two-point and four-point correlation functions, and to show their effect on the statistics of speckle patterns. Consequences for the study of real materials is discussed.

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Sylvain Ravy. 2013-03-15. Homometry in the light of coherent beams. https://doi.org/10.1107/s0108767313022733

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