16 November 1999 Flat x-ray mirrors as optical elements for coherent synchrotron radiation conditioning
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Abstract
Surface flatness of optical elements like mirrors and multilayers may significantly influence on the experiments exploiting coherence properties of x rays. A wavy mirror surface can be considered as a random-phase object. In the article, brief notes on the coherence propagation downstream from a random-phase object are presented. Image formation of a wavy surface at grazing incidence is analyzed. An approach to the inverse problem solution of phase retrieval from the mirror images in coherent x rays is shown. A performed experiment demonstrates general consistency in surface topography obtained by means of x rays and LTP. The estimates on the coherence degradation due to surface roughness are obtained.
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Amparo Rommeveaux, Alexei Souvorov, "Flat x-ray mirrors as optical elements for coherent synchrotron radiation conditioning", Proc. SPIE 3773, X-Ray Optics Design, Performance, and Applications, (16 November 1999); doi: 10.1117/12.370113; https://doi.org/10.1117/12.370113
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