Sensitive Surface Plasmon Resonance Biosensor Based on a Photonic Crystal and Bimetallic Configuration

被引:0
作者
Wang, Fang
Chen, Chaoying
Mao, Peiling
Luo, Yunhan [1 ]
Chen, Xiaolong
Fang, Junbin
Peng, Shuihua
Zhang, Jun
Tang, Jieyuan
Lu, Huihui
Chen, Zhe
Yu, Jianhui
机构
[1] Jinan Univ, Guangdong Higher Educ Inst, Key Lab Optoelect Informat & Sensing Technol, Guangzhou 510632, Guangdong, Peoples R China
来源
2014 14TH INTERNATIONAL CONFERENCE ON NUMERICAL SIMULATION OF OPTOELECTRONIC DEVICES (NUSOD 2014) | 2014年
关键词
Surface Plasmon Resonance; photonic crystal; bimetallic configuration; Refractive index; reflectance; full-width at half-maximum; FOM;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, we present and numerically demonstrate a highly sensitive photonic crystal (PC) Surface Plasmon Resonance (SPR) sensor. This proposed sensor consists of an Ag-Au bimetallic configuration that integrates the better evanescent field enhancement of silver, the higher resolution in the reflectivity minimum of silver, and the high chemical of gold. In comparison to most convenient SPR sensors which use single gold films, this PC-bimetallic configuration is shown theoretically to possess a narrower resonance width, smaller minimum reflectance and higher sensitivity, which makes it a much better choice to be employed for SPR biosensing applications.
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页码:117 / +
页数:2
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