| 激光散射技术对液晶动态变形模式的测定 |
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| 引用本文： | 屠美,陈光炜,陈文心,黄耀熊.激光散射技术对液晶动态变形模式的测定[J].光子学报,2002,31(1):67-70. |
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| 作者姓名： | 屠美 陈光炜 陈文心 黄耀熊 |
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| 作者单位： | 1. 中山医科大学物理教研室,广州,510089
2. 暨南大学生物医学工程研究所,广州,510632 |
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| 摘 要： | 本文用激光散射的方法来测定向列液晶E7的动力学变形模式,结果表明,E7的动力学行为展示为两个弛豫模式,即展曲和扭曲变形模式.在适宜的散射角范围内及不同的温度下可同时观察测定到展曲和扭曲变形模式,且通过频率和波矢的关系曲线可求出粘弹性系数.
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| 关 键 词： | 动态激光散射 液晶 动力学变形模式 |
| 收稿时间： | 2001/5/22 |
MEASUREMENT ON THE DYNAMIC DISTORTIONS MODE OF NEMATIC E7 LIQUID CRYSTAL BY LASER LIGHT SCATTERING |
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| Tu Mei,Chen Guangwei,Chen Wenxin,Huang Yaoxiong.MEASUREMENT ON THE DYNAMIC DISTORTIONS MODE OF NEMATIC E7 LIQUID CRYSTAL BY LASER LIGHT SCATTERING[J].Acta Photonica Sinica,2002,31(1):67-70. |
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| Authors: | Tu Mei Chen Guangwei Chen Wenxin Huang Yaoxiong |
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| Institution: | 1. Section of Physics, Zhongshan University of Medical Sciences, Guangzhou 510089;2. Institute of Biomedical Engineering, Ji’nan University, Guangzhou 510632 |
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| Abstract: | The dynamic behavior of nematic E7 liquid crystal is investigated by the technique of dynamic laser light scattering.Two relaxation modes,the so-called splay and twist are revealed.The results show that the two modes can be observed at the same time in feasible range of scattering angles in different temperatures.The viscoelastic parameters can be also given from the measurement. |
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| Keywords: | Dynamic laser scattering Liquid crystal Dynamic distortion mode |
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