Comparison between the switching dynamics of homeotropic and planar cells of chiral smectic-C liquid crystals

被引：0
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作者：
Pereda, N. [1 ]
Ortega, J. [2 ]
Folcia, C.L. [1 ]
Etxebarria, J. [1 ]
机构：
[1] Departmento Fis. Materia Condensada, Facultad de Ciencias, Universidad del País Vasco, Apartado 644, 48080 Bilbao, Spain
[2] Depto. de Física Aplicada II, Facultad de Ciencias, Universidad del País Vasco, Apartado 644, 48080 Bilbao, Spain
来源：
Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics | 2000年 / 62卷 / 2 A期
关键词：
Electrooptical effects - Ferroelectric materials - Interferometry - Molecular dynamics - Molecular orientation - Molecular structure - Optical variables measurement - Second harmonic generation;
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摘要：
The switching characteristics under a square-wave electric field are studied in homeotropic and planar ferroelectric liquid crystal (FLC) cells via electro-optic and second-harmonic-generation interference measurements. These are independent and self-contained techniques, and have led the authors to obtain equivalent results. The study is performed on FLCs with very different molecular structures. Clearly, at least two alternative switching mechanisms occur in FLC samples depending on the type of alignment. The different switching dynamics is a consequence of the boundary conditions to which the system is subjected in each case.
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页码：2334 / 2339
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