Flow-Induced Twist-Compression in a Twisted Nematic Cell

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Flow-Induced Twist-Compression in a Twisted Nematic Cell

Please use this identifier to cite or link to this item: http://hdl.handle.net/10036/29511


Title: Flow-Induced Twist-Compression in a Twisted Nematic Cell
Author: Ruan, Lizhen
Sambles, J. Roy
Citation: 90 (16), article 168701
Publisher: American Physical Society
Journal: Physical Review Letters
Date Issued: 2003
URI: http://hdl.handle.net/10036/29511
DOI: 10.1103/PhysRevLett.90.168701
Links: http://dx.doi.org/10.1103/PhysRevLett.90.168701 http://link.aps.org/abstract/PRL/v90/e168701
Abstract: An optical convergent-beam guided-wave technique is used to explore in detail the dynamic flow effects in a twisted nematic cell. During switch-on it is found that the dynamic flow compresses the director twist to regions close to the cell walls. For high fields this twist compression takes the cell far beyond the Mauguin limit and it no longer effectively guides the polarization of the light through the cell. This results in a very fast switch to a transient dark state.
Type: Article
Description: Lizhen Ruan and J. Roy Sambles, Physical Review Letters, Vol. 90, article 168701 (2003). "Copyright © 2003 by the American Physical Society."
ISSN: 0031-90071079-7114

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