Nanoscale hyperspectral imaging of tilted cholesteric liquid crystal structures | Zendy

Aurélie Jullien | Zendy; Adriana Scarangella | Zendy; U. Bortolozzo | Zendy; S. Residori | Zendy; Michel Mitov | Zendy

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Nanoscale hyperspectral imaging of tilted cholesteric liquid crystal structures

Author(s) -

Aurélie Jullien,

Adriana Scarangella,

U. Bortolozzo,

S. Residori,

Michel Mitov

Publication year - 2019

Publication title -

soft matter

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.99

H-Index - 170

eISSN - 1744-6848

pISSN - 1744-683X

DOI - 10.1039/c8sm02506a

Subject(s) - hyperspectral imaging , nanoscopic scale , materials science , liquid crystal , nanotechnology , cholesteric liquid crystal , optics , optoelectronics , remote sensing , geology , physics

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.

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