温度对全息聚合物分散液晶光栅形貌及电光特性的影响  

Influence of Temperature on HPDLC Grating Characteristics

作　　者：宋静[1] 马骥[1] 刘永刚[1] 宣丽[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室

出　　处：《光子学报》2007年第6期1028-1030,共3页Acta Photonica Sinica

基　　金：国家自然科学基金(50473040;60578035);吉林省科委基金(20050321-2;20050520)资助

摘　　要：采用光敏预聚物、向列相液晶和光引发剂混合物体系,在不同温度条件下制备全息光栅.利用红外光谱、光学显微镜、He-Ne激光器对预聚物和光栅进行测试.实验结果表明,光栅的衍射效率随制备温度的升高先增加后减小.对实验结果进行分析,发现它与光聚合反应体系的特性有很好的对应关系,同时深入探讨了制备温度对光栅形貌及电光特性的影响.Holographic gratings, using the system made of photosensitive pre-polymer monomers, nematic liquid crystal and photoinitiator mixtures,were fabricated under various curing temperatures. The samples were checked up by IR spectra, tical microscope and He-Ne laser. The results indicate that diffraction efficiencies of grating increased first, then decreased along with curing temperature hoists. These results were analyzed, and were found to have a good correlation with characteristics of system. The relation between temperature and diffraction was discussed.

关 键 词：全息聚合物分散液晶 光栅 光聚合反应 相分离动力学 

分 类 号：O753.2[理学—晶体学] TP211.6[自动化与计算机技术—检测技术与自动化装置]