3D Nanoprinted Plastic Kinoform X‐Ray Optics. Issue 36 (23rd July 2018)

• Record Type: Journal Article
• Authors: Sanli, Umut T.; Ceylan, Hakan; Bykova, Iuliia; Weigand, Markus; Sitti, Metin; Schütz, Gisela; Keskinbora, Kahraman
• Is Part Of: Advanced materials. Volume 30:Issue 36(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-07-23
• Subjects: 3D nanoprinting -- kinoforms -- ptychography -- soft X‐ray optics -- X‐ray microscopy; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201802503
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract: High‐performance focusing of X‐rays requires the realization of very challenging 3D geometries with nanoscale features, sub‐millimeter‐scale apertures, and high aspect ratios. A particularly difficult structure is the profile of an ideal zone plate called a kinoform, which is manufactured in nonideal approximated patterns, nonetheless requires complicated multistep fabrication processes. Here, 3D fabrication of high‐performance kinoforms with unprecedented aspect ratios out of low‐loss plastics using femtosecond two‐photon 3D nanoprinting is presented. A thorough characterization of the 3D‐printed kinoforms using direct soft X‐ray imaging and ptychography demonstrates superior performance with an efficiency reaching up to 20%. An extended concept is proposed for on‐chip integration of various X‐ray optics toward high‐fidelity control of X‐ray wavefronts and ultimate efficiencies even for harder X‐rays. Initial results establish new, advanced focusing optics for both synchrotron and laboratory sources for a large variety of X‐ray techniques and applications ranging from materials science to medicine. Abstract : 3D fabrication of high‐performance kinoforms out of low‐loss plastics is presented, using two‐photon 3D nanoprinting. Direct X‐ray imaging and ptychography experiments demonstrate superior focusing performance. An extended concept for on‐chip integration of various X‐ray optics toward high‐fidelity control of X‐ray wavefronts is proposed. Initial results establish new, advanced focusing optics for applications ranging from materials science to medicine.