High-performance photorefractivity in high- and low-molar-mass liquid crystal mixtures
High-performance photorefractivity in high- and low-molar-mass liquid crystal mixtures
复制标题
高摩尔质量和低摩尔质量液晶混合物中的高性能光折变
DOI：
10.1063/1.369609
复制
发表时间：
1999
期刊：
影响因子：
--
通讯作者：
N. Kawatsuki
中科院分区：
文献类型：
--
作者：
H. Ono;N. Kawatsuki
在富勒烯掺杂的高(H-LC)和低摩尔质量(L-LC)混合液晶(HL-LCM)中观察到了厚栅区的高性能光折变。光折变性能强烈依赖于H-LC和L-LC的浓度比。在较低的直流电场(0.7V/ m)和2.8−m的条纹间距下，获得了大于6 0 0μcmμ1的净增益系数，且增益系数和分辨率随H-LCD浓度的增加而增大。光折变光栅的形成时间在0.12~3.5 S之间变化，这与H-LCD的浓度有关。
High-performance photorefractivity in a thick-grating regime was observed in high- (H-LC) and low-molar-mass liquid crystal (L-LC) mixtures (HL-LCMs) doped with fullerene. The photorefractive performance strongly depended on the concentration ratio of H-LC and L-LC. A high net gain coefficient over 600 cm−1 was achieved with low applied dc fields (0.7 V/μm) and a fringe spacing of 2.8 μm. The gain coefficients and the resolution increased with increasing the concentration of the H-LCs. The photorefractive grating formation time was varied between 0.12 and 3.5 s, which depended on the concentration of the H-LCs.