近年来，激光调控优化贵金属纳米复合构型作为一种基于光子与物质相互作用的激发机制的新策略，既可以有效构建出表面洁净无污染的多功能化纳米材料，又能获得常规合成方式难以实现的亚稳相复合构型，因此在众多前沿应用领域具有显著优势。在简单的液相环境中，该策略主要通过聚焦高功率脉冲激光束烧蚀靶材产生高温高压的金属等离子体，后续金属等离子体在热力学非平衡状态下瞬间冷却并成核结晶，从而构建出多种新颖纳米复合构型。此外，该策略充分利用短波长激光束的高光子能量，还可以激发基底材料产生热电子作为独特的还原剂实现周围溶液中金属离子的还原，最终在前驱体负载生长出多形态的金属纳米构型。通过调控激光液相辐照参数，可以有效调控优化贵金属纳米复合构型表面原子的微观形态，使其具备优异的光激发性能，进而被广泛应用于表面增强拉曼散射、光催化、近红外强吸收等应用领域。从激光诱导调控优化金属基纳米复合材料出发，归纳了激光液相诱导策略的可控合成机理，并对激光调控优化贵金属复合构型的潜在应用及未来发展趋势进行了展望。

以偏钛酸和三聚氰胺为原料，在空气氛围下700 ℃煅烧退火制备C-N改性TiO2光催化剂。利用XRD、FT-IR、XPS、SEM、UV-Vis、BET等手段对改性前后的 样品进行表征分析。分析结果显示，改性样品为大比表面积、多孔隙锐钛矿晶型TiO2材料，TiO2晶格中部分O被N取代，表面吸附酰胺化合物。与纯TiO2相比， C-N/TiO2对NO的催化氧化效率大幅度提高。其中C-N/TiO2-2对NO的催化氧化率达到69%。

采用旋涂法和滴涂法制备了含螺噁嗪光致变色分子的不同基质薄膜，并将其应用于全光开关实验中.分别对含有螺噁嗪的聚甲基丙烯酸甲酯薄膜和二氧化硅薄膜的光致变色特性进行了吸收光谱的比对研究，结果表明：螺噁嗪/聚甲基丙烯酸甲酯薄膜经过多个开关周期后透射信号强度明显衰减；螺噁嗪/二氧化硅薄膜透射信号强度保持不变，具有更为优异的光学可逆性，更适合于作全光开关.在全息光开关实验中，选用螺噁嗪/二氧化硅薄膜，采用光擦除和热擦除两种方法研究了它的输出光信号衰减动力学特性，发现光擦除具有更短的响应时间.基于光擦除法研究激发光功率为5 mW、10 mW、25 mW时的光开关特性，发现当激发光为10 mW时，光栅对比度、衍射信号强度和开关对比度等特性最佳.

讨论了基于LED和荧光灯光源以及有无紫外线光谱的动态光照明的分类和应用。介绍了基于荧光灯的动态光照明历史。并讨论了发光二极管技术应用于动态光照明的原因。综述了动态光照影响人体皮质醇,褪黑素,警觉性,体温和情绪的作用机理。并介绍紫外线照射的安全标准。提出了一种理想的动态光照明,此种动态光考虑显色指数,色温,光照度,光谱结构和动态变化。

Photodynamic therapy (PDT) has already been a multifunctional modality for various tumors and nontumorous diseases. However, the development of photosensitizers is relatively delayed, compared with the tremendous progress in laser technology. Elsinochrome A (EA), a perylenequinonoid pigment from China, has all the typical advantages of perylenequinones. Moreover, singlet oxygen quantum yield of EA is superior to other kinds of photosensitizers and EA could be artificially biosynthesized at present, which make it an alternative candidate for PDT. In this review, the photophysics, photochemistry, photobiology and chemical or biological syntheses of EA photosensitizers are briefly presented. Besides, the future prospects of EA photosensitizers are also proposed.

从有效辐亮度出发，采用模拟人眼成像的电荷耦合元件成像仪和光谱仪相结合的方式，建立了发光二极管有效辐亮度测量系统.参照光生物安全标准中的测试要求，从理论上分析了传统亮度计在进行光生物安全测试时的不足，采用传统的亮度计和本文设计的模拟人眼成像的亮度计结合光谱仪系统测试两种典型发光二极管.测试时先进行模拟人眼成像，再结合光谱仪对有效辐亮度进行测量，最后两种亮度计的测试结果进行了分析.结果表明：采用传统亮度计测量白光发光二极管有效辐亮度值为81.8 W/m2·sr，平均强度为23.3 cd，蓝光发光二极管的平均强度仅为2.42 cd, 蓝光发光二极管有效辐亮度值为262 W/m2·sr；而采用成像仪和光谱仪结合的系统测得的白光发光二极管有效辐亮度为137.0 W/m2·sr.显然，白光发光二极管的有效辐亮度比蓝光发光二极管的有效辐亮度值小，采用传统的亮度计用于光生物安全测试会低估被测发光二极管的光生物危害性，采用新设计系统则会更加精确地测出发光二极管的有效辐亮度值，满足发光二极管的辐射安全测量要求.

Photocatalytic TiO2 thin film is prepared by sol-gel technique on microstructured silicon substrate produced by femtosecond laser cumulative irradiation. The photocatalytic activity is evaluated by the degradation of methylene blue (MB) solution under ultraviolet (UV) irradiation. For 6-ml MB solution with initial concentration of 3.0 \times 10^{-5} mol/L, the degradation rate caused by TiO2 thin film of 2-cm2 area is higher than 70% after 10-h UV irradiation. Microstructured silicon substrate is found to enhance photocatalytic activity of the TiO2 thin film remarkably. The femtosecond laser microstructured silicon substrate is suitable to support TiO2 thin film photocatalysts.

采用CO2激光点火方法，研究了含六硝基六氮杂异戊兹烷（CL-20）改性双基(CMDB)推进剂在不同功率密度作用下的点火特性，探讨了Al粉含量和燃烧催化剂对该类推进剂激光点火性能的影响。实验结果表明，在激光功率密度25.5～127.0 W/cm2范围内，不含催化剂的CL-20-CMDB推进剂点火延迟时间随功率密度增加而递减，且点火延迟时间变化逐渐减缓，点火均首先在推进剂表面产生；而含有催化剂推进剂试样的点火延迟时间和点火过程则与功率密度密切相关：在高激光功率密度时，含催化剂的推进剂点火没有发生在推进剂表面，而是在试样表面的气相中，且点火延迟时间增加。Al粉含量对其点火延迟的影响在低激光功率密度时较大，随着功率密度增加影响减弱。

Red frequency-upconversion fluorescence emission is observed in europium (III) complex with encapsulating polybenzimidazole tripodal ligands, pumped with 930- and 1070-nm picosecond laser pulses. The luminescence of transition 5D0->7F2 (612 nm) is induced by two-photon absorption of hypersensitive transitions 7F0->5D2 (465 nm) and 7F1->5D1 (535 nm). Analysis results suggest that the two-photon excitation strength of these hypersensitive transitions is increased dramatically owing to the C3 symmetry of the coordination field.

The Ryderberg electronic wave packet dynamics of hydrogen atom near helium surface in an electric field is investigated using the semiclassical method. The autocorrelation function is calculated when the photoionized electron is excited by a short laser pulse for different atom-surface separations. The results show that new recurrences appear because of the helium surface, and the number of recurrent peaks increases with the decrease in atom-surface distance. The new feature is ascribed to the bifurcation of new closed orbits in the classical dynamics of the photoionized electron. Therefore, surface properties have a significant effect on the spectrum of nearby atoms or ions.