偶氮类有机薄膜的光存储与光调制特性研究

Study on Optical Storage and Modulation Properties of Azobenzene Organic Films

本文利用光致双折射技术 ,研究了两种新型偶氮类光电功能材料的光存储与光调制特性。对比研究结果表明 :含偶氮侧链聚合物具有更好的光存储功能 ,而偶氮小分子掺杂聚合物则更适用于光调制。文中还利用偶氮小分子掺杂聚合物薄膜 ,通过改变附加偏振光的偏振方向得到了一级自衍射的放大和衰减信号 ,从而在 0°～

The Optical storage and modulation properties of azobenzene conductive organic films were studied by use of photo inducecd birefringcence.The experimental results indicate that,the azobenzene side chain polymers possess more excellent optical storage properties,however,the azobenzene doped polymers are the proper candidates for optical modulation.A new polarized light controlled holographic recording based on the optical enhancement/restraint of self diffraction has been demonstrated in azobenzene doped polymer film.It is found that a continuous variation of the polarization status of the pumping light results in a continuous variation of self diffraction efficiency with a range of 0°～90°.