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研究了手性偶氮分子N- [4- (4- 十二烷氧基苯基偶氮)苯甲酰] L- 谷氨酸(C12 -Azo- L- Glu)掺杂聚合物薄膜的光致变色特性。利用C12- Azo -L- Glu掺杂聚甲基丙烯酸甲酯(PMMA)薄膜的可逆光致异构过程,以线偏振的氩离子激光(488 nm)作抽运光和写入光,线偏振氦氖激光(632. 8 nm)作再现光和读出光,探讨了光致双折射和全息光学存储过程中,衍射信号强度与氩离子激光功率的关系。实验结果表明 C12- Azo- L- Glu具有响应时间快、可擦重写、耐疲劳度高的特点,可用作实时存储材料。
The light of a polymer film doped with a chiral azo molecule N- [4- (4-dodecyloxyphenylazo) benzoyl] L-glutamic acid (C12 -Azo- L-Glu) Induced discoloration characteristics. A reversible photoisomerization process using a C12-Azo-L-Glu doped PMMA film was performed using a linearly polarized argon-ion laser (488 nm) as pump and write light, linearly polarized He-Ne laser (632.8 nm) was used as the reproducing and reading light. The relationship between the intensity of the diffracted signal and the power of the argon-ion laser was discussed during the photo-induced birefringence and holographic optical storage. Experimental results show that C12-Azo-L-Glu has the characteristics of fast response time, erasable and rewritable, high fatigue resistance, and can be used as a real-time storage material.