2D lens array for multi-contrast X-ray imaging

Andrey A. Mikhaylov; Stefan Reich; Anton Plech; Margarita Zakharova; Vitor Vlnieska; Danays Kunka

doi:10.1117/12.2520687

26 April 2019 2D lens array for multi-contrast X-ray imaging

Andrey A. Mikhaylov, Stefan Reich, Anton Plech, Margarita Zakharova, Vitor Vlnieska, Danays Kunka

Proceedings Volume 11032, EUV and X-ray Optics: Synergy between Laboratory and Space VI; 1103208 (2019) https://doi.org/10.1117/12.2520687
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

Abstract

Inspired by the recently successfully demonstrated Shack-Hartmann sensors for hard X-rays, we present a twodimensional compound refractive lens array (CRLA) with parabolic shapes for multimodal X-ray imaging. The promising structure was produced by two-photon polymerization using state-of-the-art 3D-Printer, which allows the manufacturing of sub-micrometer structures. The 2D parabolic microlens array with 12x12 spots was characterized by scanning electron microscopy and X-ray imaging. For an X-ray energy of 8.5 keV the average focal spot size is around 8 μm at a focal distance of 38.2±0.5 cm with a visibility of 0.72. As an example of a potential application for quantitative optics characterization a diamond refractive lens was investigated by multi-contrast imaging resulting in a 0.4 μrad differential phase resolution.

Conference Presentation

Citation Download Citation

Andrey A. Mikhaylov, Stefan Reich, Anton Plech, Margarita Zakharova, Vitor Vlnieska, and Danays Kunka "2D lens array for multi-contrast X-ray imaging", Proc. SPIE 11032, EUV and X-ray Optics: Synergy between Laboratory and Space VI, 1103208 (26 April 2019); https://doi.org/10.1117/12.2520687

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