Resolution Enhancement of Optical Surface Plasmon Resonance Sensor Using Metamaterial

• 作者: J. P. SAINI Sarika PAL V. SINGH Y. K. PRAJAPATI
• 来源期刊: 光子传感器:英文版
• 学科: 工学
• 关键词: SPR传感器 分辨率增强 表面等离子共振 表面等离子体共振 反射率曲线 光学 高灵敏度 计算结果
• 年，卷（期）: 2015,（4）
• 页码范围: 330-338
• 页数: 9页
• 分类号: TP212.14
• 语种: 中文

摘要

In this paper, we present and discuss a an optical surface plasmon resonance (SPR) path to extend the enhancement of the resolution of sensor. Basically, our approach is to combine bi-metamaterial layers to design the SPR sensor. The calculation shows that the proposed SPR sensor structure has a preference over the conventional SPR sensors and bimetallic SPR sensors since it gives a much sharper reflectance dip and can achieve considerable sensitivity improvement when compared to the recently reported investigations. The effects of the metamaterial permittivity, permeability, and thickness on the reflectance curve are studied. It is also seen that metamaterial layers improve the field of the proposed SPR structure, which may provide a novel tool to significantly enhance the sensitivity and resolution of the sensors.