等离子体子
超材料
材料科学
表面等离子体子
拉曼散射
光学
表面等离子体激元
光电子学
表面粗糙度
纳米光子学
表面光洁度
散射
电磁辐射
拉曼光谱
物理
复合材料
作者
Prashant Nagpal,Nathan C. Lindquist,Sang‐Hyun Oh,David J. Norris
出处
期刊:Science
[American Association for the Advancement of Science]
日期:2009-07-30
卷期号:325 (5940): 594-597
被引量:833
标识
DOI:10.1126/science.1174655
摘要
Perfectly Flat? Plasmonic devices, which exploit the interactions of light with surface electrons, show great promise for applications in sensing, communications, and energy conversion. A key hindrance is the deposition of patterned metals used for plasmonics, because, as deposited, the terminal surfaces are rough and not amenable to patterning by directional dry-etching techniques. Nagpal et al. (p. 594 ) use patterned silicon substrates on which they add gold, silver, or copper and then apply an epoxy layer to the deposited metal. When pulled apart, the metal separates from the silicon, where the adhesion is poorer, leaving an ultra-smooth surface. The resulting surface plasmon propagation lengths approach the theoretical values for perfectly flat films.
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