Design and simulation of "I" shaped split ring resonator metamaterial at optical communication window around 1.55μm

In this paper, we report design and simulation of "I" shaped split ring resonator (SRR) metamaterial. The prime focus of this manuscript is to a design of a split ring resonance (SRR) based planar metamaterial to achieve the negative refraction in optical communication window. The propagation characteristics in terms of reflection and transmission spectrum of the reported structure are obtained using finite differential time domain (FDTD) method. In this paper all the key electromagnetic parameters i.e. such as permittivity (ɛ), permeability (μ), refractive index (n), etc. have been obtained from the simulation from propagation characteristics for the reported structure. It is observed and reported that the electromagnetic parameters (such as permittivity (ɛ) and permeability (μ)) as well as the refractive index for the reported structure is negative in broad optical communication windows around of 1.55μm.