Viscosity response measurement of nematic liquid crystal under application of electric field using shear horizontal wave

被引：1
作者：
Aoki, Masashi [1 ]
Ozaki, Ryotaro [1 ]
Moritake, Hiroshi [1 ]
Yoshino, Katsumi [2 ]
Toda, Kohji [3 ]
机构：
[1] Natl Def Acad, Dept Elect & Elect Engn, Kanagawa 2398686, Japan
[2] Shimane Univ, Res Project Promot Inst, Matsue, Shimane, Japan
[3] Musashi Inst Technol, Fac Engn, Tokyo 158, Japan
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2007年 / 477卷 / 113/[607]-124/[618]期
关键词：
director; nematic liquid crystal; response time; ultrasonic wave; viscosity;
D O I：
10.1080/15421400701686785
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The Propagation characteristics of a shear horizontal (SH) wave in a trilayer structure having a viscous fluid layer is analyzed front a numerical analysis. Acoustic phase changes under application of electric fields in a nematic liquid crystal cell are, measured using the SH wave. The acoustic phase advances with increasing the applied electric field. This result corresponds with the viscosity change based on a molecular reorientation of the liquid crystal. In dynamic response measurement, the response times in the phase and the optical measurements are different, because the measured area of the acoustic phase is only the vicinity of the glass surface.
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页码：607 / 618
页数：12
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