Vol. 46, Issue 1, pp. 131-143

Vol. 46 Issue 1 pp. 131-143

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

Sarika Pal, Y.K. Prajapati, J.P. Saini, Vivek Singh

Keywords

metamaterials, sensitivity, reflectance, evanescent field

Abstract

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.

Vol. 46
Issue 1
pp. 131-143

0.38 MB
OPTICA APPLICATA - a quarterly of the Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology