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Scalable, large area compound array refractive lens for hard X-rays

Reich, Stefan; dos Santos Rolo, Tomy; Letzel, Alexander; Baumbach, Tilo; Plech, Anton

Abstract (englisch):
We demonstrate the fabrication of a 2D Compound Array Refractive Lens (CARL) for multicontrast X-ray imaging. The CARL consists of six stacked polyimide foils with each displaying a
2D array of lenses with a 65 lm pitch aiming for a sensitivity on sub-micrometer structures with a
(few-)micrometer resolution in sensing through phase and scattering contrast at multiple keV. The
parabolic lenses are formed by indents in the foils by a paraboloid needle. The ability for fast
single-exposure multi-contrast imaging is demonstrated by filming the kinetics of pulsed laser
ablation in liquid. The three contrast channels, absorption, differential phase, and scattering, are
imaged with a time resolution of 25 ls. By changing the sample-detector distance, it is possible to
distinguish between nanoparticles and microbubbles.

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Postprint §
DOI: 10.5445/IR/1000082062
Veröffentlicht am 17.04.2018
DOI: 10.1063/1.5022748
Zitationen: 12
Zitationen: 12
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Photonenforschung und Synchrotronstrahlung (IPS)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2018
Sprache Englisch
Identifikator ISSN: 0003-6951, 1077-3118
KITopen-ID: 1000082062
HGF-Programm 56.03.20 (POF III, LK 01) Nanoscience a.Material f.Inform.Technol.
Erschienen in Applied physics letters
Verlag American Institute of Physics (AIP)
Band 112
Heft 15
Seiten 151903
Vorab online veröffentlicht am 09.04.2018
Schlagwörter laser ablation in liquids, multi contrast retrieval, scattering contrast imaging, X-ray lens
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