文档介绍：毕业设计论文
基于表面增强拉曼散射
光子晶体光纤温度传感器设计
摘要
基于表面增强拉曼散射(SERS)的光纤传感器结合了光纤与表面增强拉曼散射效应,具有普通传感器无法比拟的优点。但是,应用普通光纤将带来诸如背景干扰与吸收、光纤自身的荧光效应及拉曼散射等缺点。为解决这一问题,将光子晶体光纤与表面增强拉曼散射效应相结合,称为基于表面增强拉曼散射的光子晶体光纤(PCFs)传感器,具有高灵敏度、抗干扰、结构简单、光路可弯曲及对待测物影响极小等优点。
光子晶体光纤(Photonic Crystal Fibers,PCF)又被称为微结构光纤(Micro-Structured Fibers, MSF),近年来引起广泛关注,它的横截面上有较复杂的折射率分布,通常含有不同排列形式的气孔,这些气孔的尺度与光波波长大致在同一量级且贯穿器件的整个长度,光波可以被限制在低折射率的光纤芯区传播。
本文从以下几个方面进行了研究:
第一、拉曼散射及表面增强拉曼散射
第二、光子晶体光纤
第三、基于表面增强拉曼散射光子晶体光纤温度传感器
关键词:光子晶体光纤表面增强拉曼散射(SERS) 太赫兹
Based on surface-enhanced Raman scattering photonic crystal fiber temperature sensor
ABSTRACT
Based on surface-enhanced Raman scattering (SERS) is bination of optical fiber and optical fiber sensor surface-enhanced Raman scattering effect, with the parable advantage of ordinary sensors. However, the application will bring ordinary fiber such as background interference and absorption, fluorescence effects of the fiber itself and Raman scattering and other ings. To solve this problem, the photonic crystal fiber with surface-enhanced Raman scattering effect of bination known as surface-enhanced Raman scattering based on photonic crystal fibers (PCFs) sensor with high sensitivity, interference, simple structure, the optical path can be bent and minimal impact UUT advantages.
Photonic crystal fiber (Photonic Crystal Fibers, PCF) is also known as microstructured fibers (Micro-Structured Fibers, MSF), has attracted attention, and its cross section of a plicated refractive index distribution, generally arranged in the form containing different pores, these pores wavelength scale and in the same order of magnitude, and substantially throughout the entire length of the device, light can be limited to the low refractive index of the fiber core area propagation.
In this paper, the following aspects were studied:
First, Raman scattering and surface-enhanced Raman scattering
Second, the photonic crystal fiber
Third, based on surface-enhanced Raman scattering photonic crystal fiber