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X-ray dichroism in polyimide caused by non-resonant scattering
K S Schulze1, R Loetzsch1, R Rüffer2
1Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany.
Journal of Synchrotron Radiation
|January 5, 2021
Summary
Scattering can cause optical dichroism in materials like polyimide, even away from electronic resonances. This subtle effect can alter polarization, impacting sensitive polarimetry experiments.
Area of Science:
- Optics
- Materials Science
- Spectroscopy
Background:
- Dichroism is a crucial optical phenomenon observed across visible and X-ray spectra.
- Both absorption and scattering phenomena contribute to dichroism in materials.
Purpose of the Study:
- To investigate the contribution of scattering to dichroism in polyimide materials.
- To demonstrate that dichroism can occur due to scattering even outside electronic resonance regions.
Main Methods:
- Experimental investigation of polyimide optical properties.
- Analysis of polarization changes induced by scattering.
Main Results:
- Materials like polyimide exhibit measurable dichroism originating from scattering, even far from electronic resonances.
- The observed dichroism, though small, can induce significant polarization changes.
Conclusions:
- Scattering-induced dichroism is a relevant factor in optical measurements.
- This effect may influence the outcomes of highly sensitive polarimetric experiments, necessitating careful consideration in experimental design.
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