Open AccessX-ray Bragg magnifier microscope as a linear shift invariant imaging system: image formation and phase retrieval
Author(s) -
Patrik Vagovič,
L. Švéda,
A. Cecilia,
Elias Hamann,
Daniele Pelliccia,
E.N. Giménez,
D. Korytár,
Konstantin Mikhailovitch Pavlov,
Zdenko Zápražný,
M. S. Zubér,
Thomas Koenig,
Margie P. Olbinado,
Wataru Yashiro,
Atsushi Momose,
M. Fiederle,
Tilo Baumbach
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.021508
Subject(s) - optics , phase retrieval , microscope , wavefront , holography , zernike polynomials , invariant (physics) , phase (matter) , phase contrast imaging , physics , materials science , fourier transform , phase contrast microscopy , quantum mechanics , mathematical physics
We present the theoretical description of the image formation with the in-line germanium Bragg Magnifier Microscope (BMM) and the first successful phase retrieval of X-ray holograms recorded with this imaging system. The conditions under which the BMM acts as a linear shift invariant system are theoretically explained and supported by the experiment. Such an approach simplifies the mathematical treatment of the image formation and reconstruction as complicated propagation of the wavefront onto inclined planes can be avoided. Quantitative phase retrieval is demonstrated using a test sample and a proof of concept phase imaging of a spider leg is also presented.