Angular spectrum simulation of X-ray focusing by Fresnel zone plates
A computing simulation routine to model any type of circularly symmetric diffractive X-ray element has been implemented. The wavefield transmitted beyond the diffractive structures is numerically computed by the angular spectrum propagation method to an arbitrary propagation distance. Cylindrical sy...
| Publié dans: | Journal of synchrotron radiation. - 1994. - 20(2013), Pt 3 vom: 10. Mai, Seite 397-404 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2013
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| Accès à la collection: | Journal of synchrotron radiation |
| Sujets: | Journal Article Research Support, U.S. Gov't, Non-P.H.S. Fresnel zone plate stacking X-ray wavefield modeling angular spectrum method diffractive X-ray optics |
| Résumé: | A computing simulation routine to model any type of circularly symmetric diffractive X-ray element has been implemented. The wavefield transmitted beyond the diffractive structures is numerically computed by the angular spectrum propagation method to an arbitrary propagation distance. Cylindrical symmetry is exploited to reduce the computation and memory requirements while preserving the accuracy of the numerical calculation through a quasi-discrete Hankel transform algorithm, an approach described by Guizar-Sicairos & Gutierrez-Vega [J. Opt. Soc. Am. A, (2004), 21, 53-58]. In particular, the code has been used to investigate the requirements for the stacking of two high-resolution Fresnel zone plates with an outermost zone width of 20 nm |
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| Description: | Date Completed 23.10.2013 Date Revised 23.03.2024 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1600-5775 |
| DOI: | 10.1107/S090904951300263X |