非理想配比二氧化钒薄膜喇曼光谱研究

采用射频(RF)磁控溅射在各种条件下制备的VO2薄膜的喇曼光谱曲线.研究发现,和理想配比VO2薄膜的主要喇曼峰相比较,无论是富钒的VO2薄膜还是富氧的VO2薄膜它们主要的喇曼峰都向高频方向移动.我们提供了实验证据并且讨论了非理想配比导致VO2薄膜喇曼光谱变化的原因.     

LiNbO3质子交换光波导偏振器的研究

研制了632.8 nm光波段X切Y传Ti扩散铌酸锂质子交换光波导偏振器.从理论上分析了钛(Ti)扩散及质子交换(PE)LiNbO3波导折射率改变机理,以及影响器件性能的各种因素.实验结果与理论计算符合良好,达到了集成光路中对器件的偏振要求,为其他类型偏振器的研制提供了理论依据.     

Plasma electrolytic liquefaction of cellulosic biomass

In this paper,the rapid liquefaction of a corncob was achieved by plasma electrolysis,providing a new method for cellulosic biomass liquefaction.The liquefaction rate of the corncob was 95％ after 5 min with polyethylene glycol and glycerol as the liquefying agent.The experiments not only showed that H+ ions catalyzed the liquefaction of the corncob,but also that using accelerated H+ ions,which were accelerated by an electric field,could effectively improve the liquefaction efficiency.There was an obvious discharge phenomenon,in which the generated radicals efficiently heated the solution and liquefied the biomass,in the process of plasma electrolytic liquefaction.Finally,the optimum parameters of the corncob liquefaction were obtained by experimentation,and the liquefaction products were analyzed.     

提高光信息存储主要性能参数的方法

光信息存储技术七十年代发展起来的以光波载息的存储技术，具有高存储密度、高信息输入速率／快速随机存取信息及存储寿命长等特点，目前已成为多媒体和信息高速公路的关键技术之一。进一步提高光信息存储的主要性能参数，是人们研究和关注的重要课题之一。本文分析了影响光信息存储性能参数的因素，提出了通过缩短激光器波长，采用列阵激光器和增加激光器输出功率等方法，来进一步提高这些性能参数。     

射频磁控溅射制备硼碳氮薄膜

采用射频磁控溅射技术,用六角氮化硼和石墨为溅射靶,以氩气(Ar)和氮气(N2)为工作气体,在Si (100)衬底上制备出硼碳氮薄膜.通过X射线衍射(XRD)、傅里叶红外吸收光谱(FTIR)和X射线光电子能谱(XPS)等分析手段对样品结构、组分进行了分析.结果表明,样品的组成原子之间实现了原子级化合,且薄膜为乱层石墨结构.样品中B、C、N的原子比近似为1:1:1.     

Plasma Treatment of Industrial Landfill Leachate by Atmospheric Pressure Dielectric Barrier Discharges

An dielectric barrier discharge （DBD） system in atmospheric pressure utilized for the treatment of industrial landfill leachate is reported. The discharge param...