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19 July 1996 Electromagnetic theory of multilayer gratings and zone plates
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The two types of multilayer gratings used n x-ray domain, i.e. multilayer coated gratings and Bragg-Fresnel multilayer gratings are analyzed with the electromagnetic theory. The analysis starts from the differential formalism previously developed for a bare (single profile) grating. The method is generalized to an arbitrary thick modulated stratified medium thanks to the use of a suitable S-matrix propagation algorithm and gives stable and accurate numerical results. Thus, new diffracting devices which were out of reach of all existing theories can be analyzed, such as x-ray multilayer echelles. The method is then extended to study unperiodic focusing devices such as Bragg-Fresnel linear zone plates.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michel Neviere and Frederic Montiel "Electromagnetic theory of multilayer gratings and zone plates", Proc. SPIE 2805, Multilayer and Grazing Incidence X-Ray/EUV Optics III, (19 July 1996);

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