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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1107/S1600576717004630
|2 doi
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|a pubmed24n1562.xml
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|a (NLM)28656035
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Zhong, Qi
|e verfasserin
|4 aut
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|a Reconstruction of the near-field distribution in an X-ray waveguide array
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 09.10.2024
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|a published: Electronic-eCollection
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|a Citation Status PubMed-not-MEDLINE
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|a Iterative phase retrieval has been used to reconstruct the near-field distribution behind tailored X-ray waveguide arrays, by inversion of the measured far-field pattern recorded under fully coherent conditions. It is thereby shown that multi-waveguide interference can be exploited to control the near-field distribution behind the waveguide exit. This can, for example, serve to create a secondary quasi-focal spot outside the waveguide structure. For this proof of concept, an array of seven planar Ni/C waveguides are used, with precisely varied guiding layer thickness and cladding layer thickness, as fabricated by high-precision magnetron sputtering systems. The controlled thickness variations in the range of 0.2 nm results in a desired phase shift of the different waveguide beams. Two kinds of samples, a one-dimensional waveguide array and periodic waveguide multilayers, were fabricated, each consisting of seven C layers as guiding layers and eight Ni layers as cladding layers. These are shown to yield distinctly different near-field patterns
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|a Journal Article
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|a X-ray optics
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|a X-ray waveguides
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| 650 |
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|a nano-focusing waveguide arrays
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| 700 |
1 |
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|a Melchior, Lars
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Peng, Jichang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Qiushi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Zhanshan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Salditt, Tim
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of applied crystallography
|d 1998
|g 50(2017), Pt 3 vom: 01. Juni, Seite 701-711
|w (DE-627)NLM098121561
|x 0021-8898
|7 nnns
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| 773 |
1 |
8 |
|g volume:50
|g year:2017
|g number:Pt 3
|g day:01
|g month:06
|g pages:701-711
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| 856 |
4 |
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|u http://dx.doi.org/10.1107/S1600576717004630
|3 Volltext
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|d 50
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|e Pt 3
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|h 701-711
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