重铬酸盐明胶反射全息图的波长调节新技术研究  

Research on a New Adjustment Technique of Playback Wavelength of MBDCG Lippmann Hologram

作　　者：董光兴[1] 朱建华[1] 郭小伟[1] 万磊[1] 

机构地区：[1]四川大学物理科学与技术学院信息光学研究所

出　　处：《光子学报》2005年第1期106-109,共4页Acta Photonica Sinica

基　　金：国家自然科学基金资助项目 (6 0 0 0 70 0 2 )

摘　　要：介绍了一种采用有机预膨胀剂调节李普曼反射全息图再现波长的新方法 将水溶性的有机试剂丙稀酰胺作为预膨胀剂均匀加入亚甲基蓝敏化的重铬酸盐明胶 (MBDCG)溶液中来制作全息干板 ,预膨胀剂在反射全息图的后处理阶段溶于水 ,明胶层发生均匀收缩 ,从而使再现波长向短波方向移动 通过控制丙稀酰胺浓度 。A new technique was presented for adjusting the playback wavelength of Lippmann holograms recorded in methylene-blue sensitized dichromated gelatin (MBDCG). The main feature of this technique is introducing a water-soluble organic reagent into MBDCG photosensitive layer as preswelling reagent and wavelength adjuster. This method has wide wavelength adjustment range (up to 200 nm) and high signal-to-noise ratio, can be applied to quantitatively adjust the playback wavelength of reflection hologram by changing the concentration of preswelling reagent. Its possible applications include color image display, holographic optical elements, and optical anti-counterfeiting.

关 键 词：李普曼全息图 亚甲基蓝敏化的重铬酸盐明胶 预膨胀剂 再现波长 

分 类 号：O438.1[机械工程—光学工程]