中国激光, 2018, 45 (9): 0903001, 网络出版: 2018-09-08 复制并引用该论文  本文已被引 3 次  被引通知

图 & 表

图 1. 光路图。(a) Z扫描光路;(b)荧光光谱探测光路

Fig. 1. Optical paths. (a) Optical path for Z-scan; (b) optical path for detection of fluorescence spectrum

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图 2. 光谱随时间的变化及荧光开关的循环图。(a)紫外可见吸收光谱随紫外光照射时间的变化(插图:二芳基乙烯D1的结构);(b)荧光光谱随时间的变化;(c) 375 nm激光照射下开环态转化荧光光谱随时间的变化;(d)紫外光和可见光交替照射下荧光开关的循环图

Fig. 2. Spectrum versus time and cycle diagram of fluorescence switch. (a) Ultraviolet-visible absorption spectrum versus UV irradiation time (inset: structure of diarylethene D1); (b) fluorescence spectrum versus time; (c) fluorescence spectrum conversed by ring-opening versus time under irradiation by 375 nm laser; (d) cycle diagram of fluorescence switch under alternating irradiation by ultraviolet and visible light

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图 3. 测试结果。(a)开环态双光子吸收转化荧光光谱随时间的变化(插图:荧光强度对比度随开环态双光子吸收转化功率密度的变化);(b)开环态Z扫描的数据及拟合结果;(c)二芳基乙烯D1在超分辨光存储中的擦除效应示意图;(d)二芳基乙烯D1的荧光淬灭光谱

Fig. 3. Test results. (a) Fluorescence spectrum conversed by ring-opening via two-photon absorption versus time (inset: fluorescence intensity contrast versus ring-opening two-photon absorption conversion power density; (b) data and fitting results from ring-opening Z-scan; (c) schematic of photon-erasing effect of diarylethene D1 in super-resolution optical storage; (d) fluorescence-quenching spectrum of diarylethene D1

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图 4. 双光子双光束的有效吸收强度计算结果及吸收强度分辨率。(a) 抑制比为2时的有效吸收强度;(b)不同荧光强度对比度下的有效吸收强度分辨率;(c)线性吸收强度纵向分辨率的模拟图;(d)有效吸收强度纵向分辨率的模拟图;(e)阈值控制后有效吸收强度的模拟图;(f)阈值控制后二芳基乙烯D1最高分辨率下的有效吸收强度

Fig. 4. Calculation results of effective absorption intensity of two-photon-dual-beam and absorption intensity resolution. (a) Effective absorption intensity when inhibition ratio is 2; (b) effective absorption intensity resolution under different fluorescence intensity contrast; (c) simulated longitudinal resolution of linear energy absorption intensity; (d) simulated longitudinal resolution of effective absorption intensity; (e) simulated effective absorption intensity after threshold control; (f) eff

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图 5. 二芳基乙烯D1的记录和读出步骤设计示意图。(a)超分辨的;(b)传统的

Fig. 5. Schematic of optical recording and reading of diarylethene D1. (a) Super-resolution; (b) original

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表 1开环态双光子吸收的转化阈值功率密度及阈值光子能量随波长的变化

Table1. Conversion power density threshold of ring-opening two-photon absorption and photon energy threshold versus wavelength

Wavelength /nm 740 760 780 800 Power density threshold /(GW·cm-2) 107.36 173.53 198.75 251.87 Photon energy threshold /(1022 GJ·mol-1·cm-3) 1.896 2.91 3.175 3.92

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表 2荧光淬灭对比度随功率密度的变化

Table2. Fluorescence quenching contrast versus power density

Power density /(GW·cm-2) Initial value /photon Quenchingvalue /photon A Stable value under375 nm irradiation /photon B 1.44 19631 2660 7.4 14707 1.3 2.53 14750 1868 7.9 5845 2.5 2.75 12535 1629 7.7 3452 3.6 2.89 19932 2486 8.0 4970 4.0 3.37 15282 1820 8.4 3572 4.3 3.86 14380 781 18.4 1847 7.8

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刘铁诚, 张力, 孙静, 钟羽武, 王中阳, 郭新军, 阮昊. 二芳基乙烯的光学性质及其在超分辨光存储中的应用[J]. 中国激光, 2018, 45(9): 0903001. Liu Tiecheng, Zhang Li, Sun Jing, Zhong Yuwu, Wang Zhongyang, Guo Xinjun, Ruan Hao. Optical Properties of Dithienylethene and Its Applications in Super-Resolution Optical Storage[J]. Chinese Journal of Lasers, 2018, 45(9): 0903001.