Multifunctional and multichannel all-optical logic gates based on the in-plane coherent control of localized surface plasmons
Zebin Zhu, Jing Yuan, Liyong Jiang
Abstract
In this Letter, we report a scheme to design multifunctional and multichannel all-optical logic gates based on the in-plane coherent control of localized surface plasmons in an Au nanorod (NR) array on the Si substrate. By using theoretical analysis and structural optimization, we numerically demonstrate a four-channel all-optical logic gate device that can switch three basic logic operations on each NR only by controlling the phase differences of incident beams. This device is ultra-compact in size and shows high extensibility for parallel logic operations, which may be applied in future high-speed on-chip integrated optical computing.
Topics & Concepts
OpticsLogic gateSurface plasmonPlasmonOptoelectronicsProgrammable logic deviceMaterials sciencePhysicsComputer scienceElectronic engineeringEngineeringComputer hardwarePlasmonic and Surface Plasmon ResearchPhotonic and Optical DevicesOptical Network Technologies