Journal Article

PUBDB-2019-00087

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Phase modulation due to crystal diffraction by ptychographic imaging

Civita, M. ; Diaz, A. ; Bean, R. J. ; Shabalin, A.Extern* ; Gorobtsov, O.Extern*DESY* ; Vartanyants, I. A.DESY* ; Robinson, I. (Corresponding author)Extern*

2018
APS Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevB.97.104101  doi:10.3204/PUBDB-2019-00087

Abstract: Solving the phase problem in x-ray crystallography has occupied a considerable scientific effort in the 20th century and led to great advances in structural science. Here we use x-ray ptychography to demonstrate an interference method which measures the phase of the beam transmitted through a crystal, relative to the incoming beam, when diffraction takes place. The observed phase change of the direct beam through a small gold crystal is found to agree with both a quasikinematical model and full dynamical theories of diffraction. Our discovery of a diffraction contrast mechanism will enhance the interpretation of data obtained from crystalline samples using the ptychography method, which provides some of the most accurate x-ray phase-contrast images.

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Contributing Institute(s):

1. FS-Photon Science (FS-PS)

Research Program(s):

1. 6215 - Soft Matter, Health and Life Sciences (POF3-621) (POF3-621)

Experiment(s):

1. Measurement at external facility

Appears in the scientific report 2018

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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