Design of Nanoscale Square Ring Resonator Band-Pass Filter Using Metal-Insulator-Metal

摘要

In this paper, metal-insulator-metal (MIM)-based single-band plasmonic band-pass filters (BPF) design and analysis is presented. The basic design comprises a square ring resonator (SRR) which is coupled using straight waveguide with gap. The straight waveguide SRR is responsible for a single-band-operating wavelength (1355 nm, i.e., 221.24 THz). Design and simulations are carried out using finite-difference time-domain (FDTD)-based solver embedded in the Computer Simulation Technology (CST) Microwave Studio suite. The proposed filters are used for plasmonic single-band band-pass filter (BPF) applications in photonic integrated circuits (PICs).