Direct mapping of surface plasmon dispersion using imaging scatterometry
Direct mapping of surface plasmon dispersion using imaging scatterometry
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DOI：
10.1063/1.4812482
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发表时间：
2013-06-24
影响因子：
4
通讯作者：
Vukusic, Pete
中科院分区：
文献类型：
--
作者：
Constant, Thomas J.;Hibbins, Alastair P.;Vukusic, Pete
用成像散射仪直接记录了金属大平板上衍射表面等离子体的等频线。金属矩形bigratings，形成两个“交叉”的表面浮雕光栅，被用来演示这种测量技术。通过加深组成光栅之一，表面等离子体激元色散各向异性的控制显示在记录的等频图中。整理从500 nm到700 nm的波长范围内的等频率轮廓导致表面等离子体激元色散的三维地图。(C)2013 AIP Publishing LLC.
The iso-frequency contours of diffracted surface plasmons on metallic bigratings have been directly recorded using imaging scatterometry. Metallic rectangular bigratings, formed of two "crossed" surface relief gratings, are used to demonstrate this measurement technique. By deepening one of the constituent gratings, control of the surface plasmon dispersion anisotropy is shown in the recorded iso-frequency maps. Collating the iso-frequency contours over a range of wavelengths from 500 nm to 700 nm leads to a three-dimensional map of the surface plasmon dispersion. (C) 2013 AIP Publishing LLC.