Diffraction Analysis of Photonic Metamaterials Using a Transmission Line Formulation

摘要

A modal method with a transmission line formulation is employed to electromagnetic analysis of two types of photonic metamaterials. Effective parameters for an array of split ring resonators and plate-pairs are achieved via calculation of transmission and reflection coefficients and a retrieval procedure. Assuming spatial symmetries in the diffracted modes, computation time is reduced by a factor of 1/8 for the SRR and 1/64 for the plate-pair structure. The convergence criteria are investigated and advantages and disadvantages of the method are concluded.