X‐ray dichroism in polyimide caused by non‐resonant scattering
Loetzsch, R.
Rüffer, R.
Uschmann, I.
Röhlsberger, R.
Paulus, G. G.
DOI: https://doi.org/10.1107/S1600577520015568
Persistent URL: http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8470
Schulze, K. S.; Loetzsch, R.; Rüffer, R.; Uschmann, I.; Röhlsberger, R.; Paulus, G. G., 2020: X‐ray dichroism in polyimide caused by non‐resonant scattering . In: Journal of Synchrotron Radiation , 28 , 1 , 176 -180, DOI: https://doi.org/10.1107/S1600577520015568.
Loetzsch, R.; 1Helmholtz-Institut Jena, Fröbelstieg 3, 07743Jena, Germany
Rüffer, R.; 4ESRF – The European Synchrotron, CS 40220, 38043Grenoble Cedex 9, France
Uschmann, I.; 1Helmholtz-Institut Jena, Fröbelstieg 3, 07743Jena, Germany
Röhlsberger, R.; 1Helmholtz-Institut Jena, Fröbelstieg 3, 07743Jena, Germany
Paulus, G. G.; 1Helmholtz-Institut Jena, Fröbelstieg 3, 07743Jena, Germany
Rüffer, R.; 4ESRF – The European Synchrotron, CS 40220, 38043Grenoble Cedex 9, France
Uschmann, I.; 1Helmholtz-Institut Jena, Fröbelstieg 3, 07743Jena, Germany
Röhlsberger, R.; 1Helmholtz-Institut Jena, Fröbelstieg 3, 07743Jena, Germany
Paulus, G. G.; 1Helmholtz-Institut Jena, Fröbelstieg 3, 07743Jena, Germany
Abstract
Dichroism is one of the most important optical effects in both the visible and the X‐ray range. Besides absorption, scattering can also contribute to dichroism. This paper demonstrates that, based on the example of polyimide, materials can show tiny dichroism even far from electronic resonances due to scattering. Although the effect is small, it can lead to a measurable polarization change and might have influence on highly sensitive polarimetric experiments.
Aligned molecules, for example in polyimide foils, lead to small dichroism even far from resonances, which can be revealed by high‐precision X‐ray polarimetry. image