光学材料微缺陷引起的损伤机理及后处理

采用时域有限差分方法（FDTD）进行元件表面微结构电磁场分布的数值模拟；同时实验分析了化学湿法刻蚀对光学元件表面面形及粗糙度、激光损伤阈值等的影响。     

∧c^＊ in a coupled-channel baryon-meson scattering

Possible structures and properties of some excited states of Λ_c⁺ dynamically generated in the coupled-channel P-wave meson-baryon scattering are studied by solving the Bethe-Salpeter(BS) equation in the framework of the Chiral Unitary Approach. It is shown that both Λ_c⁺(2765) and Λ_c⁺(2940) could be generated dynamically and could be compound states with multi-configuration molecular-like structures. The couplings of the generated states to various reaction channels are also calculated. Moreover, two highly excited states, Λ_c⁺(3024) and Λ_c⁺(3134), are predicted.     

在低温等离子体及低能离子作用下PET表面氮的XPS研究

经X射线光电子能谱(XPS)分析,在空气等离子体和氩等离子体作用下,(PET)表面上结合了不同的氮化合物。特别是在氩等离子体作用5min以后,N₁₅出现双峰,表明PET表面上结合了氮的氧化官能团。通过低能氮离子和氩离子轰击PET表面的实验,证明这种N₁₅双峰结构不是低能离子单独作用引起的。 关键词：     

Efficient up-conversion Yb~(3+), Er~(3+) co-doped Na_5Lu_9F_(32) single crystal for photovoltaic application under solar cell spectrum excitation

Yb~(3+)/Er~(3+)co-doped Na_5Lu_9F_(32) single crystals used as a spectral up-converter to improve the power conversion efficiency of perovskite solar cells are prepared via an improved Bridgman approach. Green and red up-conversion(UC) emissions under the excitation of near-infrared(NIR) bands of 900–1000 nm and1400–1600 nm can be observed. The effectiveness of the prepared materials as a spectral converter is verified by the enhancement of power conversion efficiency of perovskite solar cells. The sample with a UC layer is 15.5%more efficient in converting sunlight to electricity compared to the UC layer-free sample due to the absorption of sunlight in the NIR range. The results suggest the synthesized Yb~(3+)/Er~(3+)co-doped Na_5Lu_9F_(32) single crystals are suitable for enhancing the performance of perovskite solar cells.     

核酸工具酶辅助的金属稳定同位素标记方法在生物分析中的应用

本文主要概述了近年来核酸工具酶辅助的基于金属稳定同位素标记的电感耦合等离子体质谱(ICP-MS)检测方法在生物分析中的发展和应用,简要介绍了该方法在蛋白质、核酸及一些生物小分子检测中的应用。最后对核酸工具酶辅助的基于金属稳定同位素标记的电感耦合等离子体质谱(ICP-MS)检测方法的发展前景做了展望。     

钴基非晶丝发动机转速测量仪

基于钴基非晶丝优异的巨磁阻抗特性,采用STM32F407单片机为信号处理和控制系统,设计了发动机转速测量仪。主要包括钴基非晶丝探头,多谐振荡电路,放大电路,电源电路和液晶显示。运行试验表明,仪器结构简单,工作可靠稳定。     

小鼠早期胚胎肢体发育中的视黄酸诱导的视黄酸代谢

给怀孕10 d的小鼠胃灌流视黄酸(100 mgRA/kg体重)6和24 h后,对视黄酸合成酶基因Raldh2和代谢酶基因Cyp26a1,Cyp26b1在胚胎肢体的表达进行了分析.Cyp26a1和Cyp26b1在灌流6 h,表达增加;灌流24 h,表达恢复到正常水平.Raldh2在此时间段表达降低.这些结果提示:在小鼠早期胚胎肢体发育中,存在视黄酸诱导的视黄酸代谢.     

表面增强拉曼散射光谱法在环境污染物检测中的应用

对2002～2009年间表面增强拉曼散射光谱法在环境污染物检测中的应用进展作了评述,涉及的主题有在微生物、农药残留、多环芳香烃、三聚氰胺检测中的应用(引用文献21篇)。     

超声低温测试系统及其应用

本文介绍用于超声实验的低温测试系统;可同时对衰减和声速进行测试,频率范围为5MHz—250MHz,声速测试精度为10~(-5)。列举的实验结果说明,该系统在4.2K至300K温度范围内,工作稳定,数据可靠。