Plasmon assisted light propagation and Raman scattering hot-spot in end-to-end coupled silver nanowire pairs
Plasmon assisted light propagation and Raman scattering hot-spot in end-to-end coupled silver nanowire pairs
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DOI：
10.1063/1.3679649
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发表时间：
2012-01-23
影响因子：
4
通讯作者：
Kumar, G. V. Pavan
中科院分区：
文献类型：
--
作者：
Chikkaraddy, Rohit;Singh, Danveer;Kumar, G. V. Pavan
在此，我们报告了端到端连接的银纳米线（Ag NW）对的光传播和定位能力的实验观察。通过激发Ag纳米线对一端的表面等离子体激元，我们观察到在连接处有相对较强的光发射，而在该对的远端有较弱的光发射。为了探测纳米线连接处的光定位，我们捕获了吸附有罗丹明 6G 的孤立银纳米线对的远场拉曼图像，并观察到纳米线连接处增强的拉曼散射。这种具有光传播和定位能力的纳米光子模块可用于复用片上等离子体。 (C) 2012 年美国物理研究所。 [doi:10.1063/1.3679649]
Herein, we report on the experimental observation of light propagation and localization capabilities of end-to-end connected silver nanowire (Ag NW) pairs. By exciting the surface plasmon polaritons at one end of Ag NW pair, we observed relatively intense light emission at the junction and weak light emission at the distal end of the pair. To probe the localization of light at nanowire junction, we captured far-field Raman image of an isolated Ag NW pair adsorbed with rhodamine 6G and observed enhanced Raman scattering at the nanowire junction. Such nanophotonic modules with light propagation and localization capabilities can be harnessed for multiplexed on-chip plasmonics. (C) 2012 American Institute of Physics. [doi:10.1063/1.3679649]