dc.contributor.author | Ruan, Lizhen | en_GB |
dc.contributor.author | Osipov, M. A. | en_GB |
dc.contributor.author | Sambles, J. Roy | en_GB |
dc.contributor.department | University of Exeter; University of Strathclyde | en_GB |
dc.date.accessioned | 2008-06-05T11:08:44Z | en_GB |
dc.date.accessioned | 2011-01-25T11:54:39Z | en_GB |
dc.date.accessioned | 2013-03-20T13:23:16Z | |
dc.date.issued | 2001-05-14 | en_GB |
dc.description.abstract | Twisted homogeneously planar-aligned nematic liquid-crystal cells are cooled into the smectic- A phase. The expected defective structure does not form. Instead the cells still show good optical-guiding characteristics. Exploration of the cells using a half-leaky guided-mode arrangement reveals that the liquid-crystal phase separates into three or more regions. Adjacent to both the upper and lower boundaries is a region of highly twisted nematic liquid crystal. In the center of the cell is one or more homogeneous smectic- A regions with smectic layers normal to the cell surfaces, separated by twisted nematic. As the cell is cooled so the smectic- A regions grow in thickness with the nematic regions progressively thinning but with increased twist gradient. A theoretical model of these novel results is presented. | en_GB |
dc.identifier.citation | Vol. 86 (20), pp. 4548-4551 | en_GB |
dc.identifier.doi | 10.1103/PhysRevLett.86.4548 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10036/29577 | en_GB |
dc.language.iso | en | en_GB |
dc.publisher | American Physical Society | en_GB |
dc.title | Coexisting Nematic and Smectic- A Phases in a Twisted Liquid-Crystal Cell | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2008-06-05T11:08:44Z | en_GB |
dc.date.available | 2011-01-25T11:54:39Z | en_GB |
dc.date.available | 2013-03-20T13:23:16Z | |
dc.identifier.issn | 0031-9007 | en_GB |
dc.identifier.issn | 1079-7114 | en_GB |
dc.description | Lizhen Ruan, M. A. Osipov, and J. Roy Sambles, Physical Review Letters, Vol. 86, pp. 4548 - 4551 (2001). "Copyright © 2001 by the American Physical Society." | en_GB |
dc.identifier.journal | Physical Review Letters | en_GB |