Nanoscale hyperspectral imaging of tilted cholesteric liquid crystal structures.
basic_science · Level V
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- Record sourced from PubMed, PMID 30919852.
- Also identified by DOI 10.1039/c8sm02506a.
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Abstract
Ongoing research on chiral liquid crystals takes advantage of the peculiar behavior of twisted structures subject to curvature. We demonstrate the fine tunability of the characteristics of the bandgap of a cholesteric structure in which the orientation of the helix axis spatially changes. To date, the spectral resolution of the order of 6 nm, herein reached by hyperspectral imaging, has not been solved in tilted helices. A correlation between spectral shifts and spatial twists is thus made possible.