Results 1 to 10 of about 902,619 (282)

Soliton walls paired by polar surface interactions in a ferroelectric nematic liquid crystal

open access: yesNature Communications, 2022
Surface interactions are usually polar along the normal to the interface and apolar within the interface. Here, the authors find that polar in-plane surface interactions produce domain structures in the bulk of a ferroelectric nematic liquid crystal.
Bijaya Basnet   +7 more
doaj   +1 more source

Azimuthal Anchoring Strength in Photopatterned Alignment of a Nematic

open access: yesCrystals, 2021
Spatially-varying director fields have become an important part of research and development in liquid crystals. Characterization of the anchoring strength associated with a spatially-varying director is difficult, since the methods developed for a ...
H. Nilanthi Padmini   +3 more
doaj   +1 more source

Ferroelectric nematic liquids with conics

open access: yesNature Communications, 2023
Defect lines shaped as conic sections are common in smectic liquid crystals, where they manifest equidistance of molecular layers curled in space. Here authors present hyperbolas and parabolas as domain walls in ferroelectric nematics, which are shaped ...
Priyanka Kumari   +3 more
doaj   +1 more source

Synthesis and Characterization of Novel Bio-Chiral Dopants Obtained from Bio-Betulin Produced by a Fermentation Process

open access: yesCrystals, 2021
Cholesteric liquid crystals are frequently produced by the addition of chiral dopants to achiral nematic hosts. We report here the synthesis and performance of chiral dopants obtained from bio-betulin produced by a fermentation process.
Veridiana G. Guimarães   +6 more
doaj   +1 more source

Self-Localized Liquid Crystal Micro-Droplet Arrays on Chemically Patterned Surfaces

open access: yesCrystals, 2021
Liquid crystal (LC) micro-droplet arrays are elegant systems that have a range of applications, such as chemical and biological sensing, due to a sensitivity to changes in surface properties and strong optical activity.
Jakub Kołacz, Qi-Huo Wei
doaj   +1 more source

Tunable light beam steering device using polymer stabilized blue phase liquid crystals [PDF]

open access: yes, 2017
A polarization independent and fast electrically switchable beam steering device is presented, based on a surface relief grating combined with polymer stabilized blue phase liquid crystals.
Beeckman, Jeroen   +8 more
core   +2 more sources

The design and investigation of nanocomposites containing dimeric nematogens and liquid crystal gold nanoparticles with plasmonic properties showing a nematic-nematic phase transition (Nᵤ-Nₓ/Ntb) [PDF]

open access: yes, 2014
The construction of liquid crystal compositions consisting of the dimeric liquid crystal, CB_C9_CB (cyanobiphenyl dimer = 1",9"-bis(4-cyanobiphenyl-4'-yl)nonane), and the range of nematic systems is explored.
Kohlmeier, Alexandra   +6 more
core   +2 more sources

Realization of a four-electrode liquid crystal device with full in-plane director rotation [PDF]

open access: yes, 2007
A liquid crystal device with micrometer-scale hexagonal electrodes has been fabricated and characterized. By using weak anchoring at the liquid crystal interfaces, the orientation of the director is completely governed by the applied electric fields. The
Beeckman, Jeroen   +6 more
core   +1 more source

Nuclear Magnetic Resonance Quantum Computing Using Liquid Crystal Solvents [PDF]

open access: yes, 1999
Liquid crystals offer several advantages as solvents for molecules used for nuclear magnetic resonance quantum computing (NMRQC). The dipolar coupling between nuclear spins manifest in the NMR spectra of molecules oriented by a liquid crystal permits a ...
Chuang, Isaac L.   +5 more
core   +3 more sources

Artificial web of disclination lines in nematic liquid crystals

open access: yesNature Communications, 2017
Disclination lines are topological defects in molecular orientation widely found in liquid crystals. Here Wang et al. use a surface patterning technique to produce a very stable freestanding 3D array of ½ twist disclinations, which could be exploited in ...
Mengfei Wang   +2 more
doaj   +1 more source

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