二苯乙烯衍生物掺杂聚合物的双光子漂白三维光存储研究 |
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引用本文: | 郭福全,谢富春,郭斌,梁浩,张其锦,唐火红,黄文浩. 二苯乙烯衍生物掺杂聚合物的双光子漂白三维光存储研究[J]. 中国激光, 2011, 0(11) |
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作者姓名: | 郭福全 谢富春 郭斌 梁浩 张其锦 唐火红 黄文浩 |
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作者单位: | 洛阳理工学院材料科学与工程系;南京林业大学化学与材料系;惠州学院化学工程系;中国科学技术大学高分子科学与工程系;中国科学技术大学精密机械与精密仪器系; |
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基金项目: | 国家自然科学基金(90201016); 河南省高等学校青年骨干教师计划(2010GGJS-173); 河南省科技厅(082102340026); 河南省教育厅(2009B430009)资助课题 |
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摘 要: | 设计并合成了3种具有较高双光子吸收截面的新型二苯乙烯衍生物双光子生色团,利用在飞秒激光下的双光子漂白现象,在掺杂有3种二苯乙烯衍生物的聚甲基丙烯酸甲酯薄膜内进行了三维数据光存储实验,研究了三者的双光子漂白能力并分析了激发功率对双光子荧光行为的影响。双光子漂白光存储的特性表明:曝光时间一定时,降低激发功率可以提高分辨率;激发功率不变,降低曝光时间也可以提高分辨率;但要提高存储速度,需用较大的激发功率。采用较大的激发功率(13.4mW)和较短的曝光时间(20ms),利用双光子写入和读出方法在掺杂薄膜内部实现了三维超高密度光存储,理论存储密度可达14Gbit/cm3。双光子漂白速率对激发功率的依赖关系的研究表明,双光子漂白的机理涉及到三个光子的协同作用。
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关 键 词: | 光数据存储 双光子吸收 三维光存储 光漂白 二苯乙烯衍生物 生色团 |
Study on Three-Dimensional Optical Data Storage by Two-Photon Bleaching in Stilbene Derivatives Doped Polymer |
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Affiliation: | Guo Fuquan1,4 Xie Fuchun1 Guo Bin2 Liang Hao3 Zhang Qijin4 Tang Huohong5 Huang Wenhao5 1Department of Materials Science and Engineering,Luoyang Institute of Science and Technology,Luoyang,Henan 471023,China 2Department of Chemistry and Materials,Nanjing Forestry University,Nanjing,Jiangsu 210037,China 3Department of Chemical Engineering,Huizhou University,Huizhou,Guangdong 516007,China 4Department of Polymer Science and Engineering,University of Science and Technology of China,Hefei,Anhui 230026,China 5Depa... |
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Abstract: | Three novel stilbene derivatives with high two-photon cross-section are designed and synthesized as two-photon chromophores.Three-dimensional(3D) optical data storage experiments are carried out by two-photon photobleaching with a femtosecond laser in three stilbene derivatives doped polymethylmethacryate film.Research on the two-photon photobleaching ability of three two-photon chromophores shows that the chromophore with larger two-photon cross-section could be photobleached at lower excitation power.The ... |
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Keywords: | optical data storage two-photon absorption three-dimensional optical storage photobleaching stilbene derivatives chromophore |
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