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Magnetic X-Ray Imaging Using a Single Polarization and Multimodal Ptychography
Marisel Di Pietro Martínez1,2, Alexis Wartelle1,3,4, Nicolas Mille5
1SIMaP, Université Grenoble Alpes, CNRS, Grenoble INP, 38000 Grenoble, France.
Abstract:
Polarized x-rays allow for imaging birefringent or dichroic properties of materials with nanometric resolution. To disentangle these properties from the electronic density, either a polarization analyzer or several measurements with different polarizations (typically two or more) are needed. Here we demonstrate that ptychography can disentangle these from a single polarization measurement by using a multimodal analysis. This new method provides an alternative to obtain polarization-resolved images of a sample when manipulating the incident polarization is not possible or sufficient.
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