Nonlinear Waves Induced by Molecular Flow in Liquid Crystals

Chia Rong Sheu; Ru Pin Pan

doi:10.1080/10587259508041697

Nonlinear Waves Induced by Molecular Flow in Liquid Crystals

Chia Rong Sheu, Ru Pin Pan

Department of Photonics

Research output: Contribution to journal › Article › peer-review

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Abstract

Two kinds of thermotropic liquid crystals (5CB and MBBA) are used to study the director nonlinear waves induced by flow in a homeotropic nematic cell. The flow is induced by an exciter, a piece of moving mylar film at one end of the cell. Wave velocities for various exciter velocities and temperatures are measured. A “phase” diagram with our experimental results is constructed and compared with theoretical prediction of reentrant solitons. Waves generated in a first nematic region are observed to be able to penetrate an isotropic region and reappear in a second nematic region.

Original language	English
Pages (from-to)	257-269
Number of pages	13
Journal	Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
Volume	265
Issue number	1
DOIs	https://doi.org/10.1080/10587259508041697
Publication status	Published - 1995 Jun 1

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1080/10587259508041697

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abstract = "Two kinds of thermotropic liquid crystals (5CB and MBBA) are used to study the director nonlinear waves induced by flow in a homeotropic nematic cell. The flow is induced by an exciter, a piece of moving mylar film at one end of the cell. Wave velocities for various exciter velocities and temperatures are measured. A “phase” diagram with our experimental results is constructed and compared with theoretical prediction of reentrant solitons. Waves generated in a first nematic region are observed to be able to penetrate an isotropic region and reappear in a second nematic region.",

author = "Sheu, {Chia Rong} and Pan, {Ru Pin}",

note = "Funding Information: ACKNOWLEDGMENTS This work is supported by the National Science Council of the Republic of Chna under grant NCS82-0208-M009-026.",

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PY - 1995/6/1

Y1 - 1995/6/1

N2 - Two kinds of thermotropic liquid crystals (5CB and MBBA) are used to study the director nonlinear waves induced by flow in a homeotropic nematic cell. The flow is induced by an exciter, a piece of moving mylar film at one end of the cell. Wave velocities for various exciter velocities and temperatures are measured. A “phase” diagram with our experimental results is constructed and compared with theoretical prediction of reentrant solitons. Waves generated in a first nematic region are observed to be able to penetrate an isotropic region and reappear in a second nematic region.

AB - Two kinds of thermotropic liquid crystals (5CB and MBBA) are used to study the director nonlinear waves induced by flow in a homeotropic nematic cell. The flow is induced by an exciter, a piece of moving mylar film at one end of the cell. Wave velocities for various exciter velocities and temperatures are measured. A “phase” diagram with our experimental results is constructed and compared with theoretical prediction of reentrant solitons. Waves generated in a first nematic region are observed to be able to penetrate an isotropic region and reappear in a second nematic region.

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Nonlinear Waves Induced by Molecular Flow in Liquid Crystals

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