Effect of metamaterial layer on optical surface plasmon resonance sensor

被引:29
作者
Prajapati, Y. K. [1 ]
Yadav, Archana [1 ]
Verma, A. [1 ]
Singh, V. [2 ]
Saini, J. P. [1 ]
机构
[1] BIET, Dept Elect & Commun Engn, Jhansi 284128, UP, India
[2] Banaras Hindu Univ, Dept Phys, Fac Sci, Varanasi 221005, UP, India
来源
OPTIK | 2013年 / 124卷 / 18期
关键词
Surface plasmon resonance sensor; Double negative (DNG) met materials; Fresnel equations; P-polarized light; Reflectance; NEGATIVE INDEX; ENHANCEMENT; SENSITIVITY; BIOSENSORS;
D O I
10.1016/j.ijleo.2012.12.021
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this paper an optical surface plasmon resonance (SPR) sensor with metamaterial for four and five layered structure is studied. The numerical results presented in this paper leads to a significant properties of metamaterials in sensing field. Computed results of SPR sensors using metamaterial are compared with conventional optical SPR sensors for four and five layered structure. It is seen that wider dynamic range or effective range of measurable refractive index increases when metamaterial layer is used. It is also verified that SPR sensor with metamaterial layer can dramatically enhance the resolution and reduce the reflectivity compared with conventional SPR. Validity of the magnetic field results is proved on the basis of smooth match of the fields in the different layers of the proposed optical SPR sensor. (C) 2012 Elsevier GmbH. All rights reserved.
引用
收藏
页码:3607 / 3610
页数:4
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