Electro-optics of cubic and tetragonal blue phase liquid crystals investigated by two-beam interference microscopy

Hiroyuki Yoshida, Shuhei Yabu, Hiroki Tone, Hirotsugu Kikuchi, Masanori Ozaki

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The electro-optic properties of cholesteric blue phase (BP) liquid crystals is investigated by two-beam interference microscopy. The technique can facilitate the evaluation of BP materials, since only a single measurement is required to determine the two important electro-optic coefficients, i.e., the Kerr and electrostriction coefficients, of BPs. Moreover, field-induced symmetry transitions can be observed microscopically, making this a powerful tool to investigate the structure-property relationship in BPs. Herein, we observe field-induced transitions from cubic BPs I and II to the centered tetragonal BP X, and investigate the influence of this transition on the Kerr coefficient.

Original languageEnglish
Article number062603
JournalApplied Physics Express
Volume6
Issue number6
DOIs
Publication statusPublished - Jun 2013

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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