Fluorescence Enhancement by Surface Plasmon Polaritons on Metallic Nanohole Arrays
Fluorescence Enhancement by Surface Plasmon Polaritons on Metallic Nanohole Arrays
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金属纳米孔阵列上表面等离子体激元的荧光增强
DOI：
10.1021/jz900119p
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发表时间：
2010-01-01
影响因子：
5.7
通讯作者：
Zhu, Yong-Yuan
中科院分区：
文献类型：
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作者：
Guo, Peng-Feng;Wu, Shan;Zhu, Yong-Yuan
在反射模式下，表面等离子体激元（SPPs）在银纳米孔阵列区域的荧光强度最大可达非阵列区域的11倍。在银膜上溅射30 nm的介电SiO2膜作为间隔物，以将荧光团与银分离，用于衰减荧光猝灭。优化了550 nm的阵列周期和100 nm的纳米孔半径，以匹配硼-二吡咯亚甲基荧光团（BODIPY 630/650）在阵列区域上的最有效的荧光激发和发射。
A maximum fluorescence enhancement of 11 times was achieved by surface plasmon polaritons (SPPs) on a silver nanohole array region in reflection mode, compared to that on the nonarray area. A 30 nm dielectric SiO2 film was sputtered on the silver film as a spacer to separate the fluorophore from silver for attenuation of the fluorescence quenching. An array period of 550 nm and a nanohole radius of 100 nm were optimized to match the most efficient fluorescence excitation and emission of a boron-dipyrromethene fluorophore (BODIPY 630/650) on the array region.