2-(1,2,4-三唑-1-基)-2-(3'',4''-二苯基-噻唑-2''-烯基)苯乙酮的波谱分析

本文合成了2－（1，2，4－三唑－1－基）－2－（3’，4’－二苯基－噻唑－2’－烯基）苯乙酮，对其进行了元素分析,并研究了该化合物的IR、^1HNMR及MS等波谱性质，从而确定了其结构。     

姜科植物化学成分的色谱／质谱研究

本文研究了姜科植物１１个样品，提取了挥发油，用色谱／质谱技术从挥发油中鉴定出１００多种成分。其中α－蒎烯，β－蒎烯，莰烯１，８－桉油素，β－水芹烯，柠檬酸，柠檬醛，香叶醇，丁子香酚，芳樟醇，α－姜烯，β－姜烯，α－姜黄烯，β－姜黄烯，石竹烯，姜酮，β－荜澄茄烯，香芹酮，乙酸香叶酯，乙酸芳樟酯等２０种化合物是多数姜科植物挥发油的共同成分。     

分子间电荷转移诱导的Raman散射退偏比增强效应

本文中制备了电荷转移络合物萘－Ｉ２（Ｎａｐ－Ｉ２），苯乙烯－Ｉ２（Ｓｔｙ－Ｉ２）偶氮苯－Ｉ２（ａｚｏｂ－Ｉ２），对二甲苯－Ｉ２（ｐ－ｘｙｌ－Ｉ２）以及吡啶－Ｂｒ２（Ｐｙ－Ｂｒ２），以Ｉ２的共振吸收频率激发样品，在Ｒａｍａｎ散射实验中观察到了它们络合后退偏比的增强，并对退偏比的增强机理进行了讨论。     

高T_c氧化物体系的相关系和晶体结构

本文综述了Ｒ－Ｂａ－Ｃｕ－Ｏ体系，Ｂｉ－Ｓｒ－Ｃａ－Ｃｕ－Ｏ体系，Ｔ１－Ｂａ－Ｃａ－Ｃｕ－Ｏ ＃系，Ｔ１－Ｓｒ－Ｃａ－Ｒ－Ｃｕ－Ｏ体系以及Ｐｂ－Ｓｒ－Ｒ（Ｃａ）Ｃｕ－Ｏ体系超导相的相关系和晶体结构，并讨论了超导相的结构特点和它们之间的相互关系．     

多核芳烃正离子自由基的ENDOR和EPR研究

用ＥＰＲ和ＥＮＤＯＲ方法检测傅氏烷基化反应（Ｆｒｉｅｄｅｌ－Ｃｒｕｆｔｓｒｅａｃｔｉｏｎ）中所生成的多核芳烃正离子自由基：１，４，５，８－四甲基惠、９，１０－二氘代－１，４，５，８－四甲基蒽、２，６，９，１０－四甲基蒽、２，６－二甲基－９，１０－二（对甲苯基）蒽、３，６，１１，１４－四甲基二苯并（ａ，ｃ）三亚苯正离子自由基，测定了它们的超精细偶合常数并提出了其生成机理。     

2,5—二（甲基苯基）—1,3,4—恶二唑的红外光谱特性

本文用红外光谱法研究了２，５－（邻甲基苯基）－１，３，４－恶二唑和２，５－二（间甲基苯基）－１，３，４－恶二唑的红外光谱特性，并对其主要谱带进行了指认和比较。     

纳米PIC—I／azaPIC—I混合分子聚集体光学非线性的Z—扫描研究

引入胶体ＳＰ５４，在室温下形成ＰＩＣ－Ｉ（１，１ｄｉｅｔｈｙ１－２，２－ｃｙａｎｎｉｎｅＰ－ｔｏｕｅｎｅｓｕｌ－ｆｏｎａｔｅ－Ｉｏｄｉｄｅ）／ａｚａＰＩＣ－Ｉ的Ｊ－聚集体，用Ｚ－扫描技术系统研究了室温下纳米ＰＩＣ－Ｉ／ａｚａＰＩＣ－Ｉ，有机分子聚集体三种配比下的三阶光学非线性，观测到随着延长变短，样品的三阶非线性极化率增大，我们分析和讨论了这种非线性增强的机制。     

3个方酸内Weng盐衍生物的电子结构和光谱的理论研究

用ＰＭ３系列方法对新合成的３个方酸内Ｗｅｎｇ盐衍生物分子；哌啶基－４－二甲苯基文本以内Ｗｅｎｇ盐，２－（Ｎ，Ｎ－二羟乙基）胺基－４－二甲胺苯基方酸内Ｗｅｎｇ盐，吗啉基－４－二甲胺苯基文本以内Ｗｅｎｇ盐，并进行了几何结构优化，３个分子均为刚性平面构型，以优化构型为基础，计算了上述３个分子的电荷密度，振动光谱及电子光谱，并对光谱进行了理论指认，所有理论计算结果和实验值基本吻合。将这３种方酸     

甲烷在金属氧化物上催化脱氢的从头计算

用Ｇ９４的从头计算方法对甲烷在金属氧化镁及氧化锂表面上不同氧物种Ｏ＾－，Ｏ＾２－２，Ｏ＾－２，Ｏ＾２－催化脱氢进行了理论研究，确定了过渡态的几何构型，集居分布和反应活化能。结果表明，氧物种的催化脱氢的活性顺序为Ｏ＾２－２≈Ｏ＾－〉Ｏ＾－２〉Ｏ＾２－。其中Ｏ＾－２物种由于对甲烷具有较低的氧化能力而可能是ＯＣＭ活性和高Ｃ２选择性的氧物种。     

PDATS对ps脉冲的光限幅效应

应用脉宽为２１ｐｓ脉冲，波长为５３２ｎｍ的激光脉冲研究了新型光限幅材料５－（２－硫甲基－４－甲基－５－嘧啶基）－２，４－戊二炔－１醇的对甲苯磺酸酯的光限幅效应，其优点是限幅幅值和限幅阈值低，分别为Ｅｃ＝１８０ｍＪ／ｃｍ＾２，Ｅｔｈ＝１５０ｍＪ／ｃｍ＾２；可见了光透射率高。     

Windowed Fourier transform applied in the wavelength domain to process the spectral interference signals

We report on processing the spectral interference signals by a new method based on a windowed Fourier transform applied in the wavelength domain. First, the numerical simulations are performed to demonstrate high precision of the phase retrieval from the spectral signal. Second, the feasibility of the method is confirmed in processing experimental data from a dispersive Michelson interferometer comprising a cube beamsplitter made of BK7 glass. From the retrieved spectral phase difference, the effective thickness of the beamsplitter is determined precisely.     

ICP—AES同时测定植物中十八种元素的方法研究（干灰化法）

本文应用电感耦合等离子体光谱法(简称 ICP-AES)同时测定植物中十八种元素。用干灰化法制备待测液。选用了仪器最佳折衷条件。并采用了干扰等效浓度消除光谱干扰。本法的准确度与精密度均达到满意的结果。方法简便、快速。     

Theory of the partially coherent temporal Talbot effect

The behaviour of the temporal Talbot effect under carrier partial coherence is analysed. This effect finds application as a passive method for multiplying the repetition rate of the intensity of pulse trains in first-order dispersive media. The study is based on the representation of the average intensity of partially coherent modulated light after first order dispersion as a coherence-dependent low pass filter acting on the intensity distribution obtained with a monochromatic carrier. The resulting coherence limitations are more restrictive in Talbot devices with high indices, due to the necessity of highly coherent carriers to produce a faithful reconstruction of trains by multiple pulse-to-pulse interference. Coherence limitations for architectures composed of externally modulated cw sources are analysed. Generalizations of the theory to several spectral lines, and its relation with the Collett-Wolf theorem are also reported.     

火焰原子吸收光谱法测定光学新材料钛酸钡锶中钡和锶

本文介绍了火焰原子吸收光谱法测定光学新材料钛酸钡锶中钒和锶，研究样品制备、测试条件和共存元素干扰，本法的准确度和精密度均满意。     

The discovery of nanometer fringes in laser self-mixing interference

We demonstrate the influences of optical feedback from an external mirror with high reflectivity in a He-Ne laser on self-mixing interference fringes and laser polarization states. When the external mirror is tilted to a certain level, the stable and uniform nanometer resolution fringes are generated. The fringe density is 40 times than that of the conventional self-mixing interference or two beam interference, and has still potential to be improved. Each self-mixing interference fringe corresponds to λ/80 displacement of the external mirror, i.e. 7.91 nm displacement of the external mirror. Moreover, when the movement direction of the external mirror is changed, the polarization flipping between two eigenstates will happen. The potential applications of the results are also discussed.     

高速钢牌号元素的看谱检测方法

看谱检测是利用看谱仪，双照光谱图和分析标志表，对样品发射的光谱线进行目视评定，实现检测样品元素及含量的一门应用技术，本文采用光栅波长同步光谱图和定量分析标志表，对高速钢牌号中Ｗ、Ｍｏ、Ｃｒ，Ｖ，Ｃｏ元素进行定量分析试验，其测定值符合ＧＢ２２２－８４标准。本方法具有现场检测，操作简便，成本低，不取样，不损坏样品，精度高，快速，分析范围宽及分析不受钢中元素干扰等特点。     

Prevailing effects of interference or diffraction by multiple apertures

The effects of interference and diffraction produced by a bidimensional structure composed of multiple and identical apertures are studied. Such effects are competitive during the propagation, that is, in some planes the interference effects are more visible, while in others prevail the diffraction ones. Using the number of Fresnel zones, the spatial domains where the interference or diffraction effects prevail are defined and parameterized. Simulation and experimental results are further introduced to verify the proposed method.     

Optical color image encryption based on Arnold transform and interference method

In this paper, we propose a novel method to encrypt a color image based on Arnold transform (ART) and interference method. A color image is decomposed into three independent channels, i.e., red, green and blue, and each channel is then encrypted into two random phase masks based on the ART and interference method. Light sources with corresponding wavelengths are used to illuminate the retrieved phase-only masks during image decryption. The influence of security parameters on decrypted images is also analyzed. Numerical simulation results are presented to illustrate the feasibility and effectiveness of the proposed method.     

轴对称流场干涉条纹折射率的模拟计算

提出一种获取流场干涉条纹折射率分布的新方法。该方法首先采用不等间隔的环带分割轴对称流场,使折射率变化大的地方获得的数据点密,然后通过对Abel变换进行离散数值计算来获取流场的折射率分布。通过模拟轴对称流场的实时全息干涉条纹证明了该方法不仅简单易行,而且所获取的折射率分布精度高。     

Enhancement of LED light extraction via diffraction of hexagonal lattice fabricated in ITO layer with holographic lithography and wet etching

A novel method for enhancing light extraction efficiency of LEDs via diffraction of the lattice fabricated in ITO layers of LEDs is proposed. The lattice fabrication process includes holographic lithography and wet etching. 3-beam interference holographic approach was used to fabricate large-area hexagonal lattice mask which can cover 2-inch semiconductor wafer, and acid etching was used to transfer the lattice structure into p-contact ITO layer. 1.4 fold enhancement of light output at 20 mA injection current was obtained from GaN-based LEDs in the primary experiment. The lattice fabrication process is rapid and cost-effective thus enabling industrial mass production of high brightness LEDs.