2015 Fiscal Year Final Research Report
Production of micro X-ray vortex beam with variable orbital angular momentum and its application to magnetic imaging and absorption spectroscopy
| Project/Area Number |
26600143
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Quantum beam science
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| Research Institution | Osaka University |
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Principal Investigator |
Takahashi Yukio 大阪大学, 工学(系)研究科(研究院), 准教授 (00415217)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | 量子ビーム科学 |
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| Outline of Final Research Achievements |
We experimentally visualized nanoscale dislocation strain fields in a thick silicon single crystal by Bragg X-ray ptychography. We found that the X-ray microbeam carrying orbital angular momentum is selectively produced by coherent Bragg diffraction from dislocation singularities in crystals. This work not only provides us with a tool for characterizing dislocation strain fields buried within extended crystals but also opens up new scientific opportunities in spectroscopy.
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| Free Research Field |
X線光学
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