Plasmonic filters and optical directional couplers based on wide metal-insulator-metal structure
| Autor: | Ruisheng Liang, Xingkai Xu, Zhe Yu, Qiaodong Huang, Pixin Chen |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Materials science
business.industry Surface plasmon Finite-difference time-domain method Physics::Optics Dielectric Coupled mode theory Surface plasmon polariton Atomic and Molecular Physics and Optics Optics Optoelectronics Power dividers and directional couplers Condensed Matter::Strongly Correlated Electrons Hybrid coupler business Plasmon |
| Zdroj: | Optics Express. 19:7633 |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/oe.19.007633 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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