偶氮苯聚合物薄膜的光学性质研究

Research in Optical Properties of Azobenzene Doped Polymer

对偶氮苯聚合物薄膜各组分进行光谱特性分析,并在非吸收区用光泵浦测试法研究了薄膜光致双折射及其与偏振角度的关系,得出实验曲线与理论曲线相吻合的结果.该聚合物薄膜具有较大的光致双折射和长久存储特性.利用分子取向实现了全息存储实验,说明样品薄膜具有良好的光学性质.

The UV-Vis absorption of the azobenzene doped polymersample is measured and analyzed. In the nonresonant absorption, its photo-induced birefringence is studied. The relation of photo-induced birefringence signal and polarization angle is measured and the experimental result fits the theoretical curve well. Furthermore, it possesses large photo-induced birefringence signal and the characteristic of long-term optical storage. On this basis, the optical holographic storage was achieved by using molecular orientatlnn.