Title :
Acoustooptic and acoustic streaming effects of nematic liquid crystals induced by elastic wave propagating in glass substrate
Author :
Moritake, Hiroshi ; Seike, Tadaaki ; Toda, Kohji
Author_Institution :
Dept. of Electron. Eng., Nat. Defense Acad., Yokosuka, Japan
Abstract :
Acoustooptic effects of nematic liquid crystals are investigated by means of an elastic wave propagating in a glass plate. A nematic liquid crystal cell is mounted on the central region of a glass plate for elastic wave propagation. The elastic wave propagating in the glass plate has a wide frequency range. Two types of periodical textures are observed in the nematic liquid crystals under the existence of the elastic wave. One exists in both homogeneously and homeotropically aligned cells. This texture depends not on the kind of liquid crystal but on the carrier frequency of the elastic wave. The other is recognized only in homogeneously aligned cell. This texture depends not on the carrier frequency of the elastic wave but on the layer thickness and the kind of liquid crystal. Both periodical textures are induced by the elastic wave propagating in the glass plate
Keywords :
acoustic streaming; acousto-optical effects; elastic waves; nematic liquid crystals; texture; acoustic streaming effects; acoustooptic effects; elastic wave carrier frequency dependence; elastic wave propagation; glass substrate; homeotropically aligned cells; homogeneously aligned cells; layer thickness dependence; liquid crystal type dependence; nematic liquid crystals; periodical texture; substrate elastic wave-induced effects; Acoustic propagation; Acoustic waves; Acoustooptic effects; Ceramics; Frequency; Glass; Insertion loss; Liquid crystals; Piezoelectric transducers; Surface acoustic wave devices;
Conference_Titel :
Dielectric Liquids, 1999. (ICDL '99) Proceedings of the 1999 IEEE 13th International Conference on
Conference_Location :
Nara
Print_ISBN :
0-7803-4759-5
DOI :
10.1109/ICDL.1999.799009
