In-plane bistable nematic liquid crystal devices based on nanoimprinted surface relief

Jin Seog Gwag, Junichi Fukuda, Makoto Yoneya, Hiroshi Yokoyama

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

The authors present a bistable nematic device, using a fourfold symmetrical bidirection nanometer-scale surface grating fabricated by the nanoimprinting lithography. The bistability is achieved by a composite action between two orthogonal surface undulations, which tend to stabilize the nematic director along either of the two diagonal axes. The switching between the bistable states is easily driven by orthogonal in-plane electric fields. A recent model of groove-induced surface anchoring due to Fukuda [Phys. Rev. Lett. 98, 187803 (2007)] accounts for the azimuthal bistability in the present system.

Original languageEnglish
Article number073504
JournalApplied Physics Letters
Volume91
Issue number7
DOIs
Publication statusPublished - Aug 24 2007

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liquid crystals
grooves
lithography
gratings
composite materials
electric fields

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

In-plane bistable nematic liquid crystal devices based on nanoimprinted surface relief. / Gwag, Jin Seog; Fukuda, Junichi; Yoneya, Makoto; Yokoyama, Hiroshi.

In: Applied Physics Letters, Vol. 91, No. 7, 073504, 24.08.2007.

Research output: Contribution to journalArticle

Gwag, Jin Seog ; Fukuda, Junichi ; Yoneya, Makoto ; Yokoyama, Hiroshi. / In-plane bistable nematic liquid crystal devices based on nanoimprinted surface relief. In: Applied Physics Letters. 2007 ; Vol. 91, No. 7.
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