Sensitivity enhancement of metamaterial-based surface plasmon resonance biosensor for near infrared

被引：24
|
作者：
Pal, Sarika [1 ]
Prajapati, Y. K. [2 ]
Saini, J. P. [3 ]
Singh, Vivek [4 ]
机构：
[1] KIET Grp Inst, Dept Elect & Commun Engn, Ghaziabad 201206, UP, India
[2] Motilal Nehru Natl Inst Technol, Dept Elect & Commun Engn, Allahabad 211004, Uttar Pradesh, India
[3] BIET, Dept Elect & Commun Engn, Jhansi 284128, Uttar Pradesh, India
[4] Banaras Hindu Univ, Dept Phys, Fac Sci, Varanasi 221005, Uttar Pradesh, India
来源：
OPTICA APPLICATA | 2016年 / 46卷 / 01期
关键词：
metamaterials; sensor sensitivity; reflectance; evanescent field; SENSOR; LAYER;
D O I：
10.5277/oa160112
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The present study investigates the angular response and sensitivity of a surface plasmon resonance biosensor with metamaterial, by taking the advantage of the remarkable property of metamaterials. The proposed biosensor numerically shows that silver with a metamaterial layer enhances the sensitivity. The thickness of metamaterial and silver layer has been optimized. On comparing these results with a conventional surface plasmon resonance biosensor, it is observed that the sensitivity of the proposed biosensor is improved by introducing the metamaterial. The proposed biosensor has a sensitivity 6.3124 times higher than that of the conventional surface plasmon resonance sensor.
引用
收藏
页码：131 / 143
页数：13
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