Abstract
After an overview of cholesteric blue phases, we review our recent numerical studies on possible defect structures when blue phase I (BP I) is confined in a thin cell composed of two parallel surfaces imposing homeotropic anchoring. The cell thickness is of the order of the unit cell dimension of the bulk cubic BP I. We find several structures of disclination lines which, to our knowledge, have never been discussed in the field of liquid crystals as equilibrium structures. Those structures include a parallel array of double helix disclination lines, and two parallel arrays of undulating disclination lines almost (but not exactly) perpendicular to each other. A first-order transition between those two structures is possible, and the similarity between them is discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 875-882 |
| Number of pages | 8 |
| Journal | Liquid Crystals |
| Volume | 37 |
| Issue number | 6-7 |
| DOIs | |
| Publication status | Published - Jun 1 2010 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
Cite this
Cholesteric blue phases : Effect of strong confinement. / Fukuda, Junichi; Žumer, S.
In: Liquid Crystals, Vol. 37, No. 6-7, 01.06.2010, p. 875-882.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cholesteric blue phases
T2 - Effect of strong confinement
AU - Fukuda, Junichi
AU - Žumer, S.
PY - 2010/6/1
Y1 - 2010/6/1
N2 - After an overview of cholesteric blue phases, we review our recent numerical studies on possible defect structures when blue phase I (BP I) is confined in a thin cell composed of two parallel surfaces imposing homeotropic anchoring. The cell thickness is of the order of the unit cell dimension of the bulk cubic BP I. We find several structures of disclination lines which, to our knowledge, have never been discussed in the field of liquid crystals as equilibrium structures. Those structures include a parallel array of double helix disclination lines, and two parallel arrays of undulating disclination lines almost (but not exactly) perpendicular to each other. A first-order transition between those two structures is possible, and the similarity between them is discussed.
AB - After an overview of cholesteric blue phases, we review our recent numerical studies on possible defect structures when blue phase I (BP I) is confined in a thin cell composed of two parallel surfaces imposing homeotropic anchoring. The cell thickness is of the order of the unit cell dimension of the bulk cubic BP I. We find several structures of disclination lines which, to our knowledge, have never been discussed in the field of liquid crystals as equilibrium structures. Those structures include a parallel array of double helix disclination lines, and two parallel arrays of undulating disclination lines almost (but not exactly) perpendicular to each other. A first-order transition between those two structures is possible, and the similarity between them is discussed.
UR - http://www.scopus.com/inward/record.url?scp=77954246262&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954246262&partnerID=8YFLogxK
U2 - 10.1080/02678292.2010.481909
DO - 10.1080/02678292.2010.481909
M3 - Article
AN - SCOPUS:77954246262
VL - 37
SP - 875
EP - 882
JO - Liquid Crystals
JF - Liquid Crystals
SN - 0267-8292
IS - 6-7
ER -