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DOE OSTI · 1785498

A polarization-switch effect of silicon crystals under multiple-beam diffraction geometry

Tang, Zheng·Zheng, Lirong·Chu, Shengqi·An, Pengfei·Huang, Xianrong·Hu, Tiandou·Assoufid, Lahsen
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Abstract

On the basis of rigorous dynamical-theory calculations, a complete X-ray polarization-switch effect of silicon crystals at the exact multiple-beam diffraction condition is demonstrated in this paper. The underlying physical mechanism of this unique phenomenon can be revealed using a simple multiple-wave propagation and interference model. The constructive and destructive interference of the multiple detoured-diffraction beams along the direction of the primary diffracted beam directly leads to the complete polarization switch. This phenomenon can be realized using both synchrotron and laboratory X-ray sources at many discrete wavelengths, and used to design a novel crystal-based polarizer to achieve a 90° polarization rotation.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICSX-ray multiple-beam diffractioncrystal-based polarizerdynamical diffraction theorypolarization switch effect

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Tang, Zheng, Zheng, Lirong, Chu, Shengqi, An, Pengfei, Huang, Xianrong, Hu, Tiandou, Assoufid, Lahsen. 2021-04-27. A polarization-switch effect of silicon crystals under multiple-beam diffraction geometry. https://doi.org/10.1107/s1600576721002582

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