Plasmon resonances on gold nanowires directly drawn in a step-index fiber
Plasmon resonances on gold nanowires directly drawn in a step-index fiber
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DOI：
10.1364/ol.35.002573
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发表时间：
2010-08-01
期刊：
影响因子：
3.6
通讯作者：
Russell, P. St. J.
中科院分区：
文献类型：
--
作者：
Tyagi, H. K.;Lee, H. W.;Russell, P. St. J.
我们报告成功地生产高品质的金丝，直径下降到260纳米，直接从一个黄金填充熔融硅甘蔗纤维拉丝。堆叠和绘制技术使其简单地将传统的步进索引核心，毗邻金线，在手杖。在拉制的光纤中，在特定的明确定义的波长处观察到来自玻璃芯的光与金线上的SPP共振的强耦合。这种嵌入式导线具有许多潜在的应用，例如，作为纳米级电极，在非线性光学等离子体，和作为近场扫描光学显微镜的提示。(C)2010年美国光学学会
We report the successful production of high-quality gold wires, with diameters down to 260 nm, by direct fiber drawing from a gold-filled fused-silica cane. The stack-and-draw technique makes it straightforward to incorporate a conventional step-index core, adjacent to the gold wire, in the cane. In the drawn fiber, strong coupling of light from the glass core to SPP resonances on the gold wire is observed at specific well-defined wavelengths. Such embedded wires have many potential applications, for example, as nanoscale electrodes, in nonlinear optical plasmonics, and as near-field scanning optical microscope tips. (C) 2010 Optical Society of America