Dynamical behavior of prewavy pattern near nematic-isotropic transition

Yusril Yusuf, Yoshiki Hidaka, Shoichi Kai

Research output: Contribution to journalArticle

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Abstract

We report new results about a type of electrohydrodynamic instability, the prewavy instability, in a homeotropic nematic liquid crystal in a high-frequency electric field. This instability is seen in the form of a series of bright and dark stripes in between two crossed polarizers. The stripe formation corresponds to the periodic modulation of the rotation angle of the director in the xy-plane with periodicity along the x-direction. The dynamical behavior of prewavy patterns near the nematic-isotropic transition is reported. We found that the isotropic phase, due to the Joule heating effect, starts to grow in the dark stripes, i.e., in the vicinity of in-plane rotation angle α = 0.

Original languageEnglish
Article number044601
JournalJournal of the Physical Society of Japan
Volume82
Issue number4
DOIs
Publication statusPublished - Apr 1 2013

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electrohydrodynamics
Joule heating
polarizers
periodic variations
liquid crystals
modulation
electric fields

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Dynamical behavior of prewavy pattern near nematic-isotropic transition. / Yusuf, Yusril; Hidaka, Yoshiki; Kai, Shoichi.

In: Journal of the Physical Society of Japan, Vol. 82, No. 4, 044601, 01.04.2013.

Research output: Contribution to journalArticle

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