D型环光子晶体光纤表面等离子体共振传感器
D-ring shaped photonic crystal fiber surface plasmon resonance sensor
刘旭安 1杨克成 1胡新广 1姜小刚 2罗伟漩 3陈达如3
作者信息
- 1. 黄山学院信息工程学院,安徽黄山 245041
- 2. 衢州学院教师教育学院,浙江衢州 324000
- 3. 浙江师范大学杭州高等研究院,浙江杭州 311200
- 折叠
摘要
提出了一种中红外波段宽范围低折射率检测的D型环双芯光子晶体光纤表面等离子体共振传感器.该结构为一个D型环,并在其内外表面都沉积一层金属层.采用全矢量有限元方法分析了该传感器的性能.结果表明,该传感器可以在中红外波段实现低折射率传感,并具有高传感灵敏度特性.分析物的折射率可检测范围为1.20～1.38,平均波长灵敏度和最大波长灵敏度可分别达到13717 nm/RIU和21150 nm/RIU,分辨率可达到1.94 × 10-5RIU.该传感器可在化学、生物以及环境检测等领域有重要的应用.
Abstract
In this paper,a wide range of low refractive index(RI)detection surface plasmon resonance(SPR)sensors based on D-ring-shaped side double-core photonic crystal fiber in the mid-infrared band is proposed.A metal layer is deposited on both the inner and outer surfaces of the D-ring.The full vector finite element method is used to analyze the performance of the sensor,and its sensing characteristics are studied.The results show that the sensor can achieve low and high external refractive index sensing sensitivity in the mid-infrared band.The detectable refractive index range of the analyte is 1.20～1.38,and the average wavelength sensitivity and maximum wavelength sensitivity can reach 13717 nm/RIU and 21150 nm/RIU respectively,with a resolution of 1.94 x 10-5 RIU.The designed sensor plays an important role in the fields of chemical,biological,and environmental detection.
关键词
光纤传感器/光子晶体光纤/表面等离子体共振/波长灵敏度Key words
fiber optics sensors/photonic crystal fiber/surface plasmon resonance/wavelength sensitivity引用本文复制引用
基金项目
安徽省教育厅高等学校自然科学重点研究项目(2022AH051958)
黄山学院校级人才基金启动项目(2020xkjq015)
大学生创新创业训练计划(2210375103)
黄山学院校级质量工程教学研究项目(2022JXYJ36)
出版年
2024
NETL
NSTL
万方数据