Quantitative x-ray phase imaging at the nanoscale by multilayer Laue lenses.

Abstract:

:For scanning x-ray microscopy, many attempts have been made to image the phase contrast based on a concept of the beam being deflected by a specimen, the so-called differential phase contrast imaging (DPC). Despite the successful demonstration in a number of representative cases at moderate spatial resolutions, these methods suffer from various limitations that preclude applications of DPC for ultra-high spatial resolution imaging, where the emerging wave field from the focusing optic tends to be significantly more complicated. In this work, we propose a highly robust and generic approach based on a Fourier-shift fitting process and demonstrate quantitative phase imaging of a solid oxide fuel cell (SOFC) anode by multilayer Laue lenses (MLLs). The high sensitivity of the phase to structural and compositional variations makes our technique extremely powerful in correlating the electrode performance with its buried nanoscale interfacial structures that may be invisible to the absorption and fluorescence contrasts.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Yan H,Chu YS,Maser J,Nazaretski E,Kim J,Kang HC,Lombardo JJ,Chiu WK

doi

10.1038/srep01307

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

1307

issn

2045-2322

pii

srep01307

journal_volume

3

pub_type

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