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Updated: Jun 2, 2026
Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
Published on: November 21, 2019
Plasmonic filters and optical directional couplers based on wide Metal-Insulator-Metal structure
Pixin Chen1, Ruisheng Liang, Qiaodong Huang
1Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China. liangrs@scnu.edu.cn
Abstract:
The wide Metal-Insulator-Metal (WMIM) structure is proposed and its characteristics are analyzed numerically using finite-difference time-domain (FDTD) method. Simulations show that power can be periodically transferred between its two Metal-Insulator (MI) interfaces while power is injected asymmetrically. Novel plasmonic filters and optical directional couplers (ODCs) based on WMIM structure are proposed, which work similarly as traditional dielectric devices. Due to the simple structures without thin metal gaps, our result may provide an alternative way to realize the fabrication of nanoscale optical devices.
