Electro-Optics of Cubic and Tetragonal Blue Phase Liquid Crystals Investigated by Two-Beam Interference Microscopy

Autor:	Hirotsugu Kikuchi, Hiroyuki Yoshida, Masanori Ozaki, Hiroki Tone, Shuhei Yabu
Rok vydání:	2013
Předmět:	Tetragonal crystal system Materials science Condensed matter physics Electrostriction Liquid crystal Phase (matter) Microscopy General Engineering General Physics and Astronomy Electro-optics Symmetry (physics) Interference microscopy
Zdroj:	Applied Physics Express. 6:062603
ISSN:	1882-0786 1882-0778
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6832e93a436169fc551759cfd066cfae https://doi.org/10.7567/apex.6.062603 Zobrazit plný text záznamu