BR-D96N薄膜共线全息图像存储实验研究

摘要:     利用一种生物光致变色材料—基因突变菌紫质BR-D96N薄膜的光致变色特性,实现了可擦写式共线全息图像存储实验.对于光密度为3.0的BR-D96N薄膜,在700 mW/cm2的记录光强下（波长为632.8 nm,物光、参考光光强比为约1:1.2）,全息图建立的最佳曝光时间约为3s,最佳再现光强约为50 mW/cm2,全息图寿命约为10 min.实验表明：共线全息存储技术光学系统简单,系统体积小,受存储环境的影响低,并能够实现高密度存储|同时也实验验证了BR-D96N薄膜具有响应速度快,感光灵敏度高,擦写次数高,稳定耐用,使用方便等优点,可以作为一种较灵敏的可擦写共线全息记录介质.

Collinear Holographic Image Storage with BR-D96N Film

Rewritable collinear holographic image storage was realized in a genetically mutated bacteriorhodopsin BR-D96N film by using its photochromic property.For a BR-D96N film with 3.0 optical density,under 632.8 nm,700 mW/cm2 recording light (optical reference ratio is about 1:1.2),the optimum recording time is about 3 s,the optimum reconstruction light intensity is about 50 mW/cm2,and the safetime of the hologram is about 10 min.The experiment shows that,in collinear holographic storage system,simple optical setup,small volume,low environmental effect and the high density storage can be realized|and it is proved that the BR-D96N film has advantages like short storage time,high light sensitivity,high reversibility,long-term stability and easy used,which can be used as a higher sensitive rewritable collinear holographic storage media.