组合锥型光纤SERS探针的理论设计与优化

J4 ›› 2013, Vol. 30 ›› Issue (3): 354-359.

组合锥型光纤SERS探针的理论设计与优化

张腊梅¹,廖艳林¹,范群芳¹,曹杰¹,刘晔¹,毛庆和²

1 中国科学院安徽光学精密机械研究所，安徽省光子器件与材料重点实验室，安徽合肥230031； 2 郑州轻工业学院技术物理系，河南郑州 450002； 3 中国科学技术大学, 安徽合肥 230022

收稿日期:2012-04-30 修回日期:2012-05-07 出版日期:2013-05-28 发布日期:2013-05-06
通讯作者: 毛庆和（1963-）研究员, 博士生导师，主要从事光纤光学、激光物理与器件、微纳光子器件等方面的研究。 E-mail:mqinghe@aiofm.ac.cn
作者简介:张腊梅（1980-），女，博士生，主要从事光纤传感及微纳光子器件等方面的研究。fiber_optics@aiofm.ac.cn
基金资助:
国家973计划(2007CB936603)资助项目, 国家863计划(2011AA030203)资助项目

Theoretical design and optimization of combination tapered optical fiber SERS probes

ZHANG La-mei, LIAO Yan-lin, FAN Qun-fang, CAO Jie, LIU Ye, MAO Qing-he

1 Anhui Provincial Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China； 2 Department of Technology Physics, Zhengzhou University of Light Industry, Zhengzhou 450002, China 3 University of Science and Technology of China, Hefei 230022, China

Received:2012-04-30 Revised:2012-05-07 Published:2013-05-28 Online:2013-05-06

摘要/Abstract

摘要： 对组合锥型光纤表面增强拉曼（SERS）探针的结构参数进行了设计与优化。通过建立描述消逝波激发组合锥光纤探针表面纳米颗粒的激发光衰减系数模型，结合激发光经渐变锥段的全反射传输、探针平直段与激发光纤间的模式匹配原理，给出了组合锥型光纤SERS探针的结构参数设计与优化方法。利用该设计与优化方法，在给定的光纤和纳米颗粒结构以及周围环境和激发光功率下，进行了光纤SERS探针结构参数的模拟设计。

关键词: 纤维与波导光学, 组合锥光纤探针, 光衰减效应, 模式匹配, 表面增强拉曼散射

Abstract: The structural parameters of combination tapered optical fiber surface enhanced Raman scattering（SERS）probes have been designed and optimized. By building the excitation light attenuation coefficient model based on evanescent wave excitation the nanoparticles on the surface of combination tapered optical fiber, and considering the total refraction theory of the excited light in the gradient core section and the mode-matching principle between the probe straight core section and the excitation fiber, the structure parameters design and optimization method of the combination tapered SERS probe have been presented. With given fiber, nanoparticle structure, surrounding environment and input excitation power, an example of simulation design for the structural parameters of such optical fiber SERS probes are carried out by using our presented method.

Key words: fiber and waveguide optics, combination tapered optical fiber probe, light attenuation effect, mode-matching conditions, surface enhanced Raman scattering

中图分类号:

O439
TN253

张腊梅廖艳林范群芳曹杰刘晔毛庆和. 组合锥型光纤SERS探针的理论设计与优化[J]. J4, 2013, 30(3): 354-359.

ZHANG La-mei, LIAO Yan-lin, FAN Qun-fang, CAO Jie, LIU Ye, MAO Qing-he. Theoretical design and optimization of combination tapered optical fiber SERS probes[J]. J4, 2013, 30(3): 354-359.

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