Speaker
Description
The correction of wavefront aberration [1] and manipulation of X-ray beam shapes [2] by refractive optics provides a toolbox to design and optimize X-ray beams. The foundation for these developments are micro-fabrication techniques like laser ablation and 3D printing in order to create freeform X-ray optics out of diamond or polymer. In combination with at-wavelength metrology methods these optical elements can be designed and validated. Recent advances in the fabrication of modular diamond X-ray optics enable the integration of wavefront-correcting freeform optics within the X-ray lens. This enables compact lens modules with integrated and pre-aligned aberration correction and/or beam shaping options. By combination of these modules a larger optical assembly can be realized. In this talk I will give an overview of these developments at DESY.
[1] F. Seiboth et al., “Hard X-ray wavefront correction via refractive phase plates made by additive and subtractive fabrication techniques,” Journal of Synchrotron Radiation 27(5), (2020).
[2] F. Seiboth et al., “Refractive hard x-ray vortex phase plates,” Opt. Lett. 44(18), 4622–4625 (2019).
