信息技术的支柱——光存储

分析了光存储在信息技术发展中的重要性。介绍了光存储的原理,比较了磁存储和光存储的特点。介绍了光盘存储技术的发展趋势。     

联苯衍生物及其类似物结构和旋光方向的关系(Ⅰ)

每种光学活性的联苯衍生物都是两种构象的混合物．在利用笔者所提出的螺旋理论［１～３］分析其旋光方向与结构间的关系时,必须确定它们的优势构象,比较取代基的可极化性大小及在优势和非优势构象中各种不同螺旋的扭曲角度（螺距的大小）．在全面考虑了这三种影响旋光性的因素条件下,可根据构型、构象推测它们的旋光方向和大小．反之,知道了它们的旋光方向和大小,也可推断它们的绝对构型和构象     

对《手性环酯的螺旋结构和光学活性之间关系的研究》一文的评论

论文作者在合成思路和技巧方面有独到之处,具有一定价值．但在探讨旋光性与结构关系的思路和逻辑上有较多问题．有关螺旋结构和光学活性关系的分析,任意性太大．从该文得不出所述的５ 条结论．５ 条结论中存在不确切、不全面甚至错误     

测算R_∞(λ)的新公式与电脑配色

分析了电脑配色中能否间接测算出内光谱反射率R_∞（λ）,是提高配方配色精度的关键。并根据光学原理推导出了计算R_∞（λ）的新公试,该公式给出标准色样的R_∞（λ）值,用于配色配方公式中,且提出了一种制备和获取染料基础光学数据的新方法。     

SCI引文与创新进展相关关系的实例研究

通过选取2008和2009年度典型中科院研究所的SCI引文数据,利用文献计量学方法和聚类分析等相关理论,对科研创新方向和进展开展判别和分析。对比分析描述了科研的创新成果发展过程和创新方向的客观变化。因此,文献分析法和聚类分析理论,可以定量地确定了基础研究实际发展方向和变化趋势,是科研管理工作的利器。     

Seeking Nettle Textiles – Utilizing a Combination of Microscopic Methods for Fibre Identification

Bast fibres have been commonly used as a textile material in Northern Europe since Neolithic times. However, the process of identifying the different species has been problematic, and many important questions related to their cultural history are still unanswered. For example, a modified Herzog test and the presence of calcium oxalate crystals have both been used in identification. In order to generate more reliable results, further research and advancement in multi-methodological methods is required. This paper introduces a combination of methods which can be used to identify and distinguish flax (Linum usitatissimum), hemp (Cannabis sativa), and stinging nettle (Urtica dioica). The research material consisted of reference fibres and 25 fibre samples obtained from 12 textiles assumed to be made of nettle. The textiles were from the Finno-Ugric and Historical Collections of The National Museum of Finland. The fibre samples were studied by observing the surface characteristics and cross sections with transmitted light microscopy, and by using a modified Herzog test with polarized light, in order to identify the distinguishable features in their morphological structures. The study showed that five out of 25 samples were cotton, 16 nettle, one flax, and one hemp. Findings from two samples were inconsistent. The results show that it is possible to distinguish common north European bast fibres from each other by using a combination of microscopic methods. Furthermore, by utilizing these combined methods, new and more reliable information could be obtained from historical ethnographic textiles, which creates new vistas for the interpretation of their cultural history.     

Grover量子搜寻算法的线性光学实现

利用线性光学元件和单光子来编码量子比特,可给出Grover量子搜寻算法的光学实现方案。该方案可以推广到多个量子比特的情况。     

试论光纤通信技术的应用与发展趋势

现今,光纤通信技术已经成为了一次世界性的改革,它把人类带上了一个信息的高速公路,由此可见光纤通信在信息的传递上面起着至关重要的作用,本文就光纤通信技术的应用与发展趋势进行了相应的探讨。     

电力系统中的光纤通信网及其应用技术

分析了电力系统通信网的主要特点,介绍了光纤通信的波分复用和光栅型波分复用器的工作原理,对电力通信中光纤通信的应用状况进行了概括,最后对电力系统中光纤通信网的发展做了展望。     

A novel 3-stage structure for a low-noise,high-gain and gain-flattened L-band erbium doped fiber amplifier

The configuration of the novel three-stage L-band erbium-doped fiber amplifier with very large and flat gain and very low noise figure presented in this paper uses the forward ASE (amplified spontaneous emission) from the first section of the EDF (erbium-doped fiber) and the backward AS E from the third section of the EDF (both serve as the secondary pump sources of energy) to pump the second EDF. To improve the pump efficiency, the power of the pump is split into two parts(with a ratio of e.g. 2:7). The characteristics of this L-band EDFA are studied on the basis of the Giles Model with ASE.