期刊
IEEE SENSORS JOURNAL
卷 12, 期 7, 页码 2355-2361出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2012.2188713
关键词
Aspect ratio; gold nanorod; localized surface plasmon resonance (LSPR); optical fiber sensor; surface plasmon resonance (SPR)
资金
- Engineering and Physical Sciences Research Council, U.K.
In this paper, optical fiber sensors, based on both surface plasmon resonance (SPR) and localized SPR (LSPR) approaches, have been successfully developed and cross-compared. The SPR sensor has been constructed by coating a thin layer of gold film on a piece of an optical fiber with the cladding having first been removed. Several LSPR sensors, however, have been configured in a slightly different way through coating several unclad fibers, each with a thin layer of gold-nanorods (GNRs) with a different aspect ratio. Subsequently, both SPR and LSPR sensors are exposed to solutions with different refractive index and their corresponding plasmon resonance wavelength shifts have been recorded and cross-compared. The experimental results obtained confirm that the SPR sensor has demonstrated a much higher sensitivity than that of any of the LSPR sensors, irrespective of the variation of the aspect ratio of GNRs coated. The LSPR sensors, however, have demonstrated a much better linearity compared to that of the SPR sensor.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据