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Liquid Crystals: Thermally Induced, Multicolored Hyper‐Reflective Cholesteric Liquid Crystals (Adv. Mater. 12/2011)
Author(s) -
McConney Michael E.,
Tondiglia Vincent P.,
Hurtubise Jennifer M.,
Natarajan Lalgudi V.,
White Timothy J.,
Bunning Timothy J.
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201190035
Subject(s) - liquid crystal , materials science , cholesteric liquid crystal , optics , contrast ratio , polymer , optoelectronics , nanotechnology , composite material , physics
While chiral nematic liquid crystals are promising for a variety of dynamic photonic applications, their contrast is usually limited to 50%. Timothy J. Bunning and co‐workers present a system that dynamically induces contrast approaching 100% at multiple wavelengths using temperature on p. 1453 . The inside cover is a rendered graphic of a surface bound helicoidal structured polymer network that templates the local liquid crystal molecules. The green background is a color enhanced polarized optical microscopy image of the liquid crystal texture in the non‐templated region that is critical to thermal tuning behavior. Cover design by Michael E. McConney.