Simulation of a cholesteric blue phase in a thin cell: Exotic defect structures and their response to an electric field

Jun Ichi Fukuda, Slobodan Žumer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)


We present our numerical attempts to simulate the structures of a cholesteric blue phase (BP) confined in a thin cell. Our simulations are based on a Landau-de Gennes theory describing the orientational order of the liquid crystal by a second-rank symmetric tensor. When the cell thickness is small enough, of the order of the lattice constant of the bulk BP a, various exotic defect structures that do not resemble those of bulk BPs are shown to be stable. They include a hexagonal lattice of Skyrmion excitations, and arrays of disclination lines in a double-helix form. We also show the dynamics of disclination lines in a thicker cell (∼ 2.6 a) under an applied electric field. The cell before the application of an electric field accommodates disclination lines of the form similar to that of bulk BP. The electric field alters their form in a non-trivial way depending on the field strength.

Original languageEnglish
Title of host publicationEmerging Liquid Crystal Technologies VII
Publication statusPublished - 2012
Externally publishedYes
EventEmerging Liquid Crystal Technologies VII - San Francisco, CA, United States
Duration: Jan 22 2012Jan 25 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherEmerging Liquid Crystal Technologies VII
Country/TerritoryUnited States
CitySan Francisco, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Simulation of a cholesteric blue phase in a thin cell: Exotic defect structures and their response to an electric field'. Together they form a unique fingerprint.

Cite this