紫光至红光敏感的多波长复用全息存储材料

制备了一种对紫光至红光波段敏感的光致聚合物全息存储材料,用476 nm、488 nm、496 nm、514.5 nm及632.8 nm五种波长曝光对其进行光全息性能的研究.研究表明,该材料在各种波长下的最大衍射效率均不低于45%,曝光灵敏度大于4.22×10－3 cm2·mJ－1,折射率调制度高于1.62×10－4,光栅频率接近3 000 lp/mm等.

Holographic Recording Photopolymer Sensitive to Broad Wavelenth from Violet to Red Light

A novel holographic storage photopolymer,which was sensitive to the wavelenth from violet to red light,was fabricated.The holographic recording characteristics were studied with 476 nm,488 nm,496 nm,514.5 nm and 632.8 nm five exposure wavelengths.The results show that the diffraction efficiency is more than 40%,the photo-sensitivity is more than 4.22×10－3 cm2·mJ－1,and the frequency of grating reaches to 3 000 lp/mm,etc.Many holograms were recorded at the same location with different wavelengths and could be reconstructed clearly.