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	Alternating current electric-field-induced tunable microstructures and electrohydrodynamic convection properties observed in azo-dye-doped MBBA liquid crystal cells
	Xu, Z. D. ; He, Y. N. ; Guo, M. C. ; Wang, X. G.
	2010-05-07 ; 2010-05-07
关键词	ELECTROCONVECTION Physics, Applied
中文摘要	Alternating current (ac) electric-field-induced microstructures and electrohydrodynamic convection properties were studied for a guest-host liquid crystal (LC) system. The LC (MBBA) was doped with a newly synthesized azo-dye and filled in a LC cell. When the applied ac electric-field voltage was fixed at 13.5 V (V-rms), microstructures in the LC cell varied with the frequency (f) of the electric field. The probed He-Ne laser light displayed a hexagonal diffracted pattern when f=4.3 Hz, a square symmetry pattern when f=17.38 Hz, and a new hexagonal symmetry pattern when f=34.07 Hz. The first-order diffraction intensities along the x-axis direction (I1-x(t)) and y-axis direction (I1-y(t)) showed different time evolution tendency. At the same time, the phase shift (phi) between I1-x(t) and second-order diffraction intensity I2-x(t) was found to be dependent on the frequency. (c) 2007 American Institute of Physics.
语种	英语 ; 英语
出版者	AMER INST PHYSICS ; MELVILLE ; CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/17421]
专题	清华大学
推荐引用方式 GB/T 7714	Xu, Z. D.,He, Y. N.,Guo, M. C.,et al. Alternating current electric-field-induced tunable microstructures and electrohydrodynamic convection properties observed in azo-dye-doped MBBA liquid crystal cells[J],2010, 2010.
APA	Xu, Z. D.,He, Y. N.,Guo, M. C.,&Wang, X. G..(2010).Alternating current electric-field-induced tunable microstructures and electrohydrodynamic convection properties observed in azo-dye-doped MBBA liquid crystal cells..
MLA	Xu, Z. D.,et al."Alternating current electric-field-induced tunable microstructures and electrohydrodynamic convection properties observed in azo-dye-doped MBBA liquid crystal cells".(2010).

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