Academic Bibliography

 Search 200 years of publications by Ghent University researchers.
Advanced search
2 files | 4.74 MB
Add to list
  1. Search results
  2. Two-step photoalignment with high res...

Two-step photoalignment with high resolution for the alignment of blue phase liquid crystal

Sunqian Liu (UGent) , Inge Nys (UGent) and Kristiaan Neyts (UGent)
(2022) ADVANCED OPTICAL MATERIALS. 10(17).
Author
Organization
Project
Abstract
The self-assembling properties of liquid crystal (LC) are ideal for realizing switchable optical components. The director organization is strongly determined by the alignment at the substrate interfaces and photoalignment is a versatile method based on linearly polarized UV light. In this work, a two-step photoalignment procedure is proposed to pattern the alignment at the surface. Illumination with uniform polarization or with an interference pattern is combined to obtain stripe patterns or square patterns of photoalignment. It can indeed be confirmed that the nematic director follows the varying azimuthal orientation. By increasing the angle between the two interfering beams, photoalignment with sub-micrometer resolution is obtained, compatible with the dimensions of blue phase (BP) LC unit cell. Homogeneous domains of BP II with (100) or (110) crystal orientation are obtained and their Kossel patterns are recorded. The two-step photoalignment technique allows to create patterns with high resolution and to control the orientation of BP LC, which is promising for photonic applications that require single domains.
Keywords
blue phase liquid crystal, high resolution, Kossel pattern, two-step photoalignment, POLARIZATION VOLUME GRATINGS, PHOTONIC CRYSTALS, OPTICS

Downloads

  • Download
    (...).pdf
    • full text (Published version)
    • |
    • UGent only
    • |
    • PDF
    • |
    • 3.43 MB
  • Download
    Accepted manuscript.pdf
    • full text (Accepted manuscript)
    • |
    • open access
    • |
    • PDF
    • |
    • 1.31 MB

Citation

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

MLA
Liu, Sunqian, et al. “Two-Step Photoalignment with High Resolution for the Alignment of Blue Phase Liquid Crystal.” ADVANCED OPTICAL MATERIALS, vol. 10, no. 17, 2022, doi:10.1002/adom.202200711.
APA
Liu, S., Nys, I., & Neyts, K. (2022). Two-step photoalignment with high resolution for the alignment of blue phase liquid crystal. ADVANCED OPTICAL MATERIALS, 10(17). https://doi.org/10.1002/adom.202200711
Chicago author-date
Liu, Sunqian, Inge Nys, and Kristiaan Neyts. 2022. “Two-Step Photoalignment with High Resolution for the Alignment of Blue Phase Liquid Crystal.” ADVANCED OPTICAL MATERIALS 10 (17). https://doi.org/10.1002/adom.202200711.
Chicago author-date (all authors)
Liu, Sunqian, Inge Nys, and Kristiaan Neyts. 2022. “Two-Step Photoalignment with High Resolution for the Alignment of Blue Phase Liquid Crystal.” ADVANCED OPTICAL MATERIALS 10 (17). doi:10.1002/adom.202200711.
Vancouver
1.
Liu S, Nys I, Neyts K. Two-step photoalignment with high resolution for the alignment of blue phase liquid crystal. ADVANCED OPTICAL MATERIALS. 2022;10(17).
IEEE
[1]
S. Liu, I. Nys, and K. Neyts, “Two-step photoalignment with high resolution for the alignment of blue phase liquid crystal,” ADVANCED OPTICAL MATERIALS, vol. 10, no. 17, 2022.
@article{8756040,
  abstract     = {{The self-assembling properties of liquid crystal (LC) are ideal for realizing switchable optical components. The director organization is strongly determined by the alignment at the substrate interfaces and photoalignment is a versatile method based on linearly polarized UV light. In this work, a two-step photoalignment procedure is proposed to pattern the alignment at the surface. Illumination with uniform polarization or with an interference pattern is combined to obtain stripe patterns or square patterns of photoalignment. It can indeed be confirmed that the nematic director follows the varying azimuthal orientation. By increasing the angle between the two interfering beams, photoalignment with sub-micrometer resolution is obtained, compatible with the dimensions of blue phase (BP) LC unit cell. Homogeneous domains of BP II with (100) or (110) crystal orientation are obtained and their Kossel patterns are recorded. The two-step photoalignment technique allows to create patterns with high resolution and to control the orientation of BP LC, which is promising for photonic applications that require single domains.}},
  articleno    = {{2200711}},
  author       = {{Liu, Sunqian and Nys, Inge and Neyts, Kristiaan}},
  issn         = {{2195-1071}},
  journal      = {{ADVANCED OPTICAL MATERIALS}},
  keywords     = {{blue phase liquid crystal,high resolution,Kossel pattern,two-step photoalignment,POLARIZATION VOLUME GRATINGS,PHOTONIC CRYSTALS,OPTICS}},
  language     = {{eng}},
  number       = {{17}},
  pages        = {{9}},
  title        = {{Two-step photoalignment with high resolution for the alignment of blue phase liquid crystal}},
  url          = {{http://doi.org/10.1002/adom.202200711}},
  volume       = {{10}},
  year         = {{2022}},
}
Altmetric
View in Altmetric
Web of Science
Times cited: