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Updated: Feb 12, 2026

A 3D Cartographic Description of the Cell by Cryo Soft X-ray Tomography
Published on: March 15, 2021
Note: Soft X-ray transmission polarizer based on ferromagnetic thin films
L Müller1, G Hartmann2, S Schleitzer1
1Deutsches Elektronen-Synchrotron DESY, FS-CXS, 22607 Hamburg, Germany.
Abstract:
A transmission polarizer for producing elliptically polarized soft X-ray radiation from linearly polarized light is presented. The setup is intended for use at synchrotron and free-electron laser beamlines that do not directly offer circularly polarized light for, e.g., X-ray magnetic circular dichroism (XMCD) measurements or holographic imaging. Here, we investigate the degree of ellipticity upon transmission of linearly polarized radiation through a cobalt thin film. The experiment was performed at a photon energy resonant to the Co L3-edge, i.e., 778 eV, and the polarization of the transmitted radiation was determined using a polarization analyzer that measures the directional dependence of photo electrons emitted from a gas target. Elliptically polarized radiation can be created at any absorption edge showing the XMCD effect by using the respective magnetic element.
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