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采用光纤技术实现拉曼光谱和扫描隧道显微镜实时联用测试
Authors
卓向东
李五湖
+8 more
毛秉伟
王铎
田中群
穆纪千
谢兆雄
郑炜
陈捷光
颜恩柔
Publication date
5 April 1996
Publisher
Abstract
设计并制作了与扫描隧道显微镜(STM)探头和拉曼光谱仪相适配的光纤探测装置,该装置采用配有很短焦距的自聚焦透镜以获得较大的相对孔径,并使用多束光纤以充分利用扫描隧道显微镜探针周围有限空间,提高了拉曼散射光的收集效率,获得具有较高信噪比的拉曼谱图。在该装置基础上进一步建立了拉曼-扫描隧道显微镜联用系统.初步实验表明该联用系统用于实时研究固/气和固/液界面体系是可行的,即利用扫描隧道显微镜可获得固体表面的微观形貌,同时利用拉曼光谱可获得表面吸附(反应)物种的分子结构信息,它为表面科学研究提供一种新方法
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Last time updated on 16/06/2016