Sensitivity enhancement of metal clad planar waveguide sensor using metamaterial layer as a guiding layer

In the present paper, a comprehensive study of sensitivity and reflectance of metal clad planar waveguide biosensor having metamaterial in guiding layer has been done. The sensitivity and reflectivity of proposed waveguide sensor are calculated using Fresnel's laws. It is observed that the sensitivity of a waveguide is highly affected by the presence of metamaterial layer. The calculated sensitivity has been compared with those reported in the earlier studies. It is observed that the sensitivity increases in the presence of metamaterial.