金属表面荧光增强的物理增强机制

徐良敏; 张正龙; 蔡晓燕; 郑海荣

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金属表面荧光增强的物理增强机制

论文 | 更新时间：2020-08-12

- 金属表面荧光增强的物理增强机制
- Physical Mechanisms of Fluorescence Enhancement at Metal Surface
- 发光学报 2009年30卷第3期页码：373-378
- 作者机构：
  
  陕西师范大学物理学与信息技术学院,陕西西安,710062
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： O432.1;O482.31
- 收稿日期：2008-08-25，
  
  修回日期：1900-01-02，
  
  网络出版日期：2009-06-30，
  
  纸质出版日期：2009-06-30
- 稿件说明：
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徐良敏, 张正龙, 蔡晓燕, 等. 金属表面荧光增强的物理增强机制[J]. 发光学报, 2009,30(3):373-378.

XU Liang-min, ZHANG Zheng-long, CAI Xiao-yan, et al. Physical Mechanisms of Fluorescence Enhancement at Metal Surface[J]. Chinese journal of luminescence, 2009, 30(3): 373-378.
徐良敏, 张正龙, 蔡晓燕, 等. 金属表面荧光增强的物理增强机制[J]. 发光学报, 2009,30(3):373-378. DOI：

XU Liang-min, ZHANG Zheng-long, CAI Xiao-yan, et al. Physical Mechanisms of Fluorescence Enhancement at Metal Surface[J]. Chinese journal of luminescence, 2009, 30(3): 373-378. DOI：

摘要

具有特殊形貌及构型的表面(如金属薄膜)能够使位于其邻近的荧光分子的荧光信号得到增强

这种现象被称之为表面增强荧光(Surface Enhanced Fluorescence

SEF)。有关表面增强荧光效应的研究探讨已有许多报道

并先后提出了多种增强机理以试图理解和解释观测到的实验现象。本文将在总结归纳已有机理研究的基础上

从物理学的角度出发分析理解局域场增强、能量转移以及辐射衰减速率增加等理论模型

并对衬底表面与荧光分子之间的间距变化对增强效果的影响进行探讨。

Abstract

Metal surfaces with special morphologies can enhance the fluorescent emission signals of fluorophores at the surface. This phenomenon is named Surface Enhanced Fluorescence (SEF). Up to now

many investigations have been carried on SEF

various kinds of theoretical models have been raised to understand the mechanism of the observed SEF effects. This paper will try to analyze and understand the proposed enhancement mechanisms of the SEF from the point of physics

explore the physical processes and relations of local field enhancement

energy transfer

and plasmon coupled emission models. The influence of the distance between the fluorophore and the metal surface on the enhancement defect will be discussed

too.

关键词

Keywords

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