全息聚合物分散液晶膜的干涉图像存储及衍射特性

液晶与显示 , 2001, 16(1): 16-21. doi: 10.3969/j.issn.1007-2780.2001.01.004

全息聚合物分散液晶膜的干涉图像存储及衍射特性

任洪文 ^1, , 方鲲 ^2, , 鲁兴海 ^3, , 孔祥贵 ^4, , 宣丽 ^5, , 黄锡珉 ^6, , 杨正华 ^7, , 张春华 ^8,

1.中国科学院

2.中国科学院

3.中国科学院

4.中国科学院

5.中国科学院

6.中国科学院长春光学精密机械与物理研究所北方液晶工程研究开发中心,

7.中国科学院长春应用化学研究所,

8.中国科学院长春应用化学研究所,

基金项目: 吉林省科技厅科研项目(19990515) 中国科学院"百人计划"(19990359) 国家自然科学基金(19974046,59933020)

关键词：聚合物分散液晶 , 相分离 , 光干涉 , 全息光栅

Interference Patterns Storing in Holographic Polymer Dispersed Liquid Crystals and its Diffraction Properties

用激光干涉形成的亮条纹引发预聚物/液晶混合物相分离,在相分离稳定后，干涉图样被存储在聚合物/液晶复合膜中，被称之为全息聚合物分散液晶（HPDLC）。研究了相关因素对HPDLC膜信息存储的影响，并用光学显微镜观察了膜结构。给出了具有栅式结构膜的衍射特性。实验结果表明，形成的HPDLC膜其存储的栅结构稳定持久，而且其衍射效率可用电或热来调节。

The phase separation between prepolymer and liquid crystals wasinduced by laser beam interference bright patterns. After the phase separation, the interference patterns we re stored in polymer/liquid crystal composed film, which is called holographic polymer di spersed liquid crystals (HPDLC). Some related factors having influence o n the image storing in HPDLC were studied, the structure of the film was observed under optical microscope, and the diffraction properties of the gra tinglike film were given. Results show that the formed HPDLC with grating structure is permanent, and the diffraction efficiency can be adjusted electrically or thermally.

参考文献

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