期刊
PHOTONICS
卷 8, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/photonics8100438
关键词
PCF; biosensor; terahertz band; silver nanopillar
类别
资金
- National Science Foundation of China [61805067, 61905061]
- Science and Technology Research Project of Hebei Province Higher Education [BJ2018047]
- Natural Science Foundation of Hebei Province [F2020202069]
This paper presents a highly sensitive biosensor using silver nanopillars, achieving detection of refractive index changes in the terahertz band by adjusting the structure and surface treatment of the optical fiber. Valuable data was recorded under different settings to determine the sensor's final sensitivity.
In this paper, a highly sensitive biosensor based on partially immobilized silver nanopillars is proposed. The working frequency of this sensor is in the terahertz band, and the range of the detected refractive index is 1.33 to 1.38. We set air holes of two different sizes on the cross-section of the optical fiber and arranged them into a hexagon. In order to improve the sensitivity, silver nanopillars were immobilized on part of the surface of the fiber cladding. The method for detecting the change of refractive index of the bio-analyte was based on local surface plasmon resonance properties of noble metal. The research recorded valuable data about the values of loss peak and full width at half maximum as well as resonance frequency shift under different setting conditions. The data present the biosensor's final sensitivity as 1.749 THz/RIU.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据