Advanced search
1 file | 5.98 MB Add to list

Rotationally invariant ring-shaped liquid crystal structures between two substrates with different photoalignment

Brecht Berteloot (UGent) , Inge Nys (UGent) , Xiangyu Xue (UGent) , Jeroen Beeckman (UGent) and Kristiaan Neyts (UGent)
Author
Organization
Abstract
Planar patterned photoalignment can be used to align liquid crystals (LCs) in any azimuthal orientation. Using different patterns on both substrates, we fabricated and analyzed complex three-dimensional LC structures. We developed four configurations in which planar patterns with rotational symmetry are defined at each substrate. All four configurations generate a ring-shaped region in the bulk of the sample where the LC aligns vertically. The director configurations are calculated using numerical simulations and are verified by comparing the simulated optical transmission to the measured microscopy images. The vertical alignment in the bulk of the cell makes it possible to use this configuration as a waveguide, as demonstrated by a waveguide mode simulation. (C) 2021 Published by Elsevier B.V.
Keywords
Liquid crystals, Patterned photoalignment, Waveguide, Ring resonator, Vernier alignment, OPTICAL-PROPERTIES, FABRICATION

Downloads

  • (...).pdf
    • full text (Published version)
    • |
    • UGent only
    • |
    • PDF
    • |
    • 5.98 MB

Citation

Please use this url to cite or link to this publication:

MLA
Berteloot, Brecht, et al. “Rotationally Invariant Ring-Shaped Liquid Crystal Structures between Two Substrates with Different Photoalignment.” JOURNAL OF MOLECULAR LIQUIDS, vol. 337, 2021, doi:10.1016/j.molliq.2021.116238.
APA
Berteloot, B., Nys, I., Xue, X., Beeckman, J., & Neyts, K. (2021). Rotationally invariant ring-shaped liquid crystal structures between two substrates with different photoalignment. JOURNAL OF MOLECULAR LIQUIDS, 337. https://doi.org/10.1016/j.molliq.2021.116238
Chicago author-date
Berteloot, Brecht, Inge Nys, Xiangyu Xue, Jeroen Beeckman, and Kristiaan Neyts. 2021. “Rotationally Invariant Ring-Shaped Liquid Crystal Structures between Two Substrates with Different Photoalignment.” JOURNAL OF MOLECULAR LIQUIDS 337. https://doi.org/10.1016/j.molliq.2021.116238.
Chicago author-date (all authors)
Berteloot, Brecht, Inge Nys, Xiangyu Xue, Jeroen Beeckman, and Kristiaan Neyts. 2021. “Rotationally Invariant Ring-Shaped Liquid Crystal Structures between Two Substrates with Different Photoalignment.” JOURNAL OF MOLECULAR LIQUIDS 337. doi:10.1016/j.molliq.2021.116238.
Vancouver
1.
Berteloot B, Nys I, Xue X, Beeckman J, Neyts K. Rotationally invariant ring-shaped liquid crystal structures between two substrates with different photoalignment. JOURNAL OF MOLECULAR LIQUIDS. 2021;337.
IEEE
[1]
B. Berteloot, I. Nys, X. Xue, J. Beeckman, and K. Neyts, “Rotationally invariant ring-shaped liquid crystal structures between two substrates with different photoalignment,” JOURNAL OF MOLECULAR LIQUIDS, vol. 337, 2021.
@article{8708333,
  abstract     = {{Planar patterned photoalignment can be used to align liquid crystals (LCs) in any azimuthal orientation. Using different patterns on both substrates, we fabricated and analyzed complex three-dimensional LC structures. We developed four configurations in which planar patterns with rotational symmetry are defined at each substrate. All four configurations generate a ring-shaped region in the bulk of the sample where the LC aligns vertically. The director configurations are calculated using numerical simulations and are verified by comparing the simulated optical transmission to the measured microscopy images. The vertical alignment in the bulk of the cell makes it possible to use this configuration as a waveguide, as demonstrated by a waveguide mode simulation. (C) 2021 Published by Elsevier B.V.}},
  articleno    = {{116238}},
  author       = {{Berteloot, Brecht and Nys, Inge and Xue, Xiangyu and Beeckman, Jeroen and Neyts, Kristiaan}},
  issn         = {{0167-7322}},
  journal      = {{JOURNAL OF MOLECULAR LIQUIDS}},
  keywords     = {{Liquid crystals,Patterned photoalignment,Waveguide,Ring resonator,Vernier alignment,OPTICAL-PROPERTIES,FABRICATION}},
  language     = {{eng}},
  pages        = {{9}},
  title        = {{Rotationally invariant ring-shaped liquid crystal structures between two substrates with different photoalignment}},
  url          = {{http://dx.doi.org/10.1016/j.molliq.2021.116238}},
  volume       = {{337}},
  year         = {{2021}},
}

Altmetric
View in Altmetric
Web of Science
Times cited: