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Updated: May 29, 2026

Polarization-Sensitive Two-Photon Microscopy for a Label-Free Amyloid Structural Characterization
Published on: September 8, 2023
Polarization periodicity in the B(1) columnar phase determined by resonant x-ray scattering
C L Folcia1, J Ortega, J Etxebarria
1Física de la Materia Condensada, Facultad de Ciencia y Tecnología, UPV/EHU, E-48080 Bilbao, Spain.
Abstract:
We report structural results that evidence the polarization distribution of the blocks in the columnar phase of an achiral bent-core liquid crystal. The study was performed using resonant x-ray diffraction at the sulfur K edge on oriented samples aligned on substrates. The extra periodicity is revealed through the violation of the systematic extinction rule of the structural symmetry group along the experimentally accessible diffraction direction. Further data obtained from the polarization analysis of a resonant reflection give information concerning the transition mechanism between B(1) and B(2) phases.
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