Bragg reflection band width and optical rotatory dispersion of cubic blue-phase liquid crystals

Hiroyuki Yoshida, Konkanok Anucha, Yasuhiro Ogawa, Yuto Kawata, Masanori Ozaki, Junichi Fukuda, Hirotsugu Kikuchi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The Bragg reflection band width and optical rotatory dispersion of liquid crystalline cholesteric blue phases (BPs) I and II are compared by numerical simulations. Attention is paid to the wavelength regions for which the reflection bands with lowest photon energies appear, i.e., the [110] direction for BP I and the [100] direction for BP II. Finite difference time domain and 4×4 matrix calculations performed on the theoretical director tensor distribution of BPs with the same material parameters show that BP II, which has simple cubic symmetry, has a wider photonic band gap than BP I, which has body centered cubic symmetry, possibly due to the fact that the density of the double-twist cylinders in BP II are twice that in BP I. The theoretical results on the Bragg reflection band width are supported by reflectance measurements performed on BPs I and II for light incident along the [110] and [100] directions, respectively.

Original languageEnglish
Article number042703
JournalPhysical Review E
Volume94
Issue number4
DOIs
Publication statusPublished - Oct 21 2016

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Liquid Crystal
liquid crystals
Bandwidth
bandwidth
symmetry
photonics
tensors
reflectance
photons
liquids
wavelengths
Symmetry
Photonic Band Gap
simulation
Finite-difference Time-domain (FDTD)
Reflectance
Twist
energy
Lowest
Photon

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

Cite this

Bragg reflection band width and optical rotatory dispersion of cubic blue-phase liquid crystals. / Yoshida, Hiroyuki; Anucha, Konkanok; Ogawa, Yasuhiro; Kawata, Yuto; Ozaki, Masanori; Fukuda, Junichi; Kikuchi, Hirotsugu.

In: Physical Review E, Vol. 94, No. 4, 042703, 21.10.2016.

Research output: Contribution to journalArticle

Yoshida, Hiroyuki ; Anucha, Konkanok ; Ogawa, Yasuhiro ; Kawata, Yuto ; Ozaki, Masanori ; Fukuda, Junichi ; Kikuchi, Hirotsugu. / Bragg reflection band width and optical rotatory dispersion of cubic blue-phase liquid crystals. In: Physical Review E. 2016 ; Vol. 94, No. 4.
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AU - Fukuda, Junichi

AU - Kikuchi, Hirotsugu

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