Apochromatic X-ray focusing

Umut T. Sanli; Griffin Rodgers; Marie-Christine Zdora; Peng Qi; Jan Garrevoet; Ken Vidar Falch; Bert Müller; Christian David; Joan Vila-Comamala

doi:10.1038/s41377-023-01157-8

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Apochromatic X-ray focusing

Original Articles

- Apochromatic X-ray focusing
- Apochromatic X-ray focusing
- LSA 2023年12卷第7期页码：1301-1308
- Affiliations：
  
  1.Paul Scherrer Institute, Laboratory for X-ray Nanoscience and Technologies, Forschungsstrasse 111, 5232 Villigen, Switzerland
  2.Biomaterials Science Center, Department of Biomedical Engineering, University of Basel, Hegenheimermattweg 167 B, 4123 Allschwil, Switzerland
  3.Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
- Author bio：
  
  Umut T. Sanli (umut.sanli@psi.ch)
- Funds：
- DOI：10.1038/s41377-023-01157-8
  中图分类号：
- 纸质出版日期：2023-07-31，
  
  网络出版日期：2023-05-04，
  
  收稿日期：2022-11-30，
  
  修回日期：2023-03-17，
  
  录用日期：2023-04-11
- Accepted：
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Apochromatic X-ray focusing[J]. LSA, 2023,12(7):1301-1308.

Sanli, U. T. et al. Apochromatic X-ray focusing. Light: Science & Applications, 7, 1301-1308 (2023).
Apochromatic X-ray focusing[J]. LSA, 2023,12(7):1301-1308. DOI： 10.1038/s41377-023-01157-8.

Sanli, U. T. et al. Apochromatic X-ray focusing. Light: Science & Applications, 7, 1301-1308 (2023). DOI： 10.1038/s41377-023-01157-8.

摘要

Abstract

Achromatic doublets are combinations of two individual lenses designed to focus different wavelengths of light in the same position. Apochromatic optics are improved versions of the achromatic schemes which extend the wavelength range significantly. Both achromatic and apochromatic optics are well-established for visible light. However

X-ray achromatic lenses did not exist until very recently

and X-ray apochromatic lenses have never been experimentally demonstrated. Here

we create an X-ray apochromatic lens system using an appropriate combination of a Fresnel zone plate and a diverging compound refractive lens with a tuned separation distance. The energy-dependent performance of this apochromat was characterized at photon energies between 6.5 and 13.0 keV by ptychographic reconstruction of the focal spot and scanning transmission X-ray microscopy of a resolution test sample. The apochromat delivered a reconstructed focal spot size of 940 × 740 nm

. The apochromatic combination shows a four-fold improvement in the chromatic aberration correction range compared to an achromatic doublet configuration. Thus

apochromatic X-ray optics have the potential to increase the focal spot intensity for a wide variety of X-ray applications.

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Keywords

references

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