Polymer Nanofibers Embedded with Aligned Gold Nanorods: A New Platform for Plasmonic Studies and Optical Sensing
Polymer Nanofibers Embedded with Aligned Gold Nanorods: A New Platform for Plasmonic Studies and Optical Sensing
复制标题
嵌入对齐金纳米棒的聚合物纳米纤维：等离子体研究和光学传感的新平台
DOI：
10.1021/nl301055f
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发表时间：
2012-06-01
期刊：
影响因子：
10.8
通讯作者：
Ying, Yibin
中科院分区：
文献类型：
--
作者：
Wang, Pan;Zhang, Lei;Ying, Yibin
本文报道了单轴取向嵌入金纳米棒的聚合物纳米纤维的制备和表征，应用于光波导和传感领域。利用光波导法，我们在嵌入的金纳米棒中实现了局域表面等离子体共振的高效激发，在其纵向共振波长下，单个纳米棒的光子-等离子体转换效率高达70%。在此基础上，进一步实现了响应时间为110ms、工作光功率低至500pW的紧凑型光学湿度传感器。
This paper reports the fabrication and characterization of polymer nanofibers embedded with gold nanorods in uniaxial alignment for applications in optical waveguiding and sensing. Using a waveguiding approach, we demonstrated highly efficient excitation of localized surface plasmon resonance in the embedded gold nanorods with a photon-to-plasmon-conversion efficiency as high as 70% for a single nanorod at its longitudinal resonance wavelength. On the basis of waveguiding polymer nanofibers embedded with gold nanorods, we further demonstrated compact optical humidity sensors with a response time of 110 ms and an operation optical power as low as 500 pW.