【摘要】 研究了偶氮侧链聚合物中光致各向异性和偏振全息， 确认在这种聚合物中分析光致各向异性动力学过程时， 必须考虑光漂白效应的影响， 测量表明该聚合物具有大的光致双折射（Δｎ ＝７．８×１０－ ３）， 并在其中记录了高衍射效率（η＝ １９．３％ ）的偏振全息图更多还原

【Abstract】 An amorphous polymer containing azo side groups has been investigated regarding to the photoinduced anisotropy and polarization holographic recording. Measurements reveal that the effect of photobleaching process should be taken into account in explaining the experimental results in the azobenzene side chain polymer film and that the polymer possesses large magnitude of photoinduced birefringence ( Δ n= 7.8×10 -3 ). A reversible polarization hologram with high efficiency (19.3%) is recorded with a CW 532 nm laser in this thin film.更多还原