CAJ | 학술논문

研究了以He—Ne激光器作为记录光源，以He-Ne、Nd：YAG和He-Cd激光器作为读出光源的亚甲基蓝敏化的PVA／AA体系光致聚合物的全息衍射光锥现象。衍射光锥现象的产生是由于入射光透过全息记录材料内部的不均匀结构或缺陷所产生的噪音光栅所致。运用Ewald球对此现象产生的机理进行了解释，利用全息光散射理论结合三角学知识对不同波段的激光器写入及复现情况下的入射角与衍射光锥锥角的依赖关系进行了讨论。依据全息光散射的尺寸效应与入射光的瞬态能量转移理论对PVA／AA体系中红敏光致聚合物产生的噪音光栅及衍射光锥现象进行了抑制，使该光聚物的复现光表现出较高且稳定的衍射效率。
연구료이He—Ne격광기작위기록광원，이He-Ne、Nd：YAG화He-Cd격광기작위독출광원적아갑기람민화적PVA／AA체계광치취합물적전식연사광추현상。연사광추현상적산생시유우입사광투과전식기록재료내부적불균균결구혹결함소산생적조음광책소치。운용Ewald구대차현상산생적궤리진행료해석，이용전식광산사이론결합삼각학지식대불동파단적격광기사입급복현정황하적입사각여연사광추추각적의뢰관계진행료토론。의거전식광산사적척촌효응여입사광적순태능량전이이론대PVA／AA체계중홍민광치취합물산생적조음광책급연사광추현상진행료억제，사해광취물적복현광표현출교고차은정적연사효솔。
In holographic storage experiment, 632 nm He-Ne laser as writing light source, 632 nm He-Ne laser, 532 nm Nd：YAG laser and 441 nm He-Cd laser as reading light source, the holographic diffraction cones phenomenon based on PVA/AA photopolymer of methylene blue as sensibilizer thin films are studied. The appearance of diffraction cones can readily be explained as being due to holographic interference fringes formed between the original laser beam and light scat- tered from internal or surface inhomogeneities in the unexposed photopolymer, According to Ewald structure sphere theory, the forming mechanism of diffraction cones is discussed. The dependence between angles of the incidence and diffraction cone angles are deeply studied in different wavelengths of irradiation lights by using holographic scattering theory with trigonome- try knowledge. According to the size effect of holographic scattering and transient energy transfer theory of incident light, the noise gratings and holographic diffraction cones pattern based on methylene blue sensitized PVA/AA photopolymer are better suppressed, making readout light show up higher diffraction efficiency.