External Noise Effect on the Onset of Williams Domain in Nematic Liquid Crystals
External Noise Effect on the Onset of Williams Domain in Nematic Liquid Crystals
复制标题
外部噪声对向列液晶中威廉姆斯域起始的影响
DOI：
10.1143/jpsj.50.1451
复制
发表时间：
1981
影响因子：
1.7
通讯作者：
S. Kabashima
中科院分区：
文献类型：
--
作者：
T. Kawakubo;Akihiro Yanagita;S. Kabashima
为了研究外加噪声对电流体动力学不稳定性的影响，我们测量了外加噪声与交流电压叠加时，双相液晶MBBA中威廉姆斯畴的波数谱.发现威廉姆斯畴开始的阈值电压随着噪声功率的增加而向更高的值移动。它的噪声依赖性的Dubois-Violette等人提出的理论解释。
In order to examine the effect of external noise on the electrohydrodynamic instability, we have measured the wave number spectrum of the pattern of Williams domain in nematic liquid crystals MBBA in the presence of external noise superposed to the a c voltage. The threshold voltage for the onset of Williams domain is found to shift to higher values with increasing noise power. Its noise dependence is interpreted in terms of a theory presented by Dubois-Violette et al.