Power Loss Reduction of Angled Metallic Wedge Plasmonic Waveguides via the Interplay between Near-Field Optical Coupling and Modal Coupling

Coupled metallic-wedge nano-plasmonic (CWP) waveguides were predicted as the best building blocks, which can realize ultra-compact and broadband integrated optical circuits (IOCs) due to the localized near-field distributions at the dielectric/metal interfaces. Our simulation results show that the m...

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Bibliographic Details
Main Authors: Yin-Song Liao, Jia-Ren Wu, Diksha Thakur, Jy-Shan Hsu, Ram Prakash Dwivedi, Sheng Hsiung Chang
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Photonics
Subjects:
Online Access:https://www.mdpi.com/2304-6732/9/9/663
Description
Summary:Coupled metallic-wedge nano-plasmonic (CWP) waveguides were predicted as the best building blocks, which can realize ultra-compact and broadband integrated optical circuits (IOCs) due to the localized near-field distributions at the dielectric/metal interfaces. Our simulation results show that the manipulations of the near-field distribution and the near-field modal coupling in CWP waveguides can effectively minimize the power loss by varying the wedge angles, which can avoid the loss from the metallic structure and thereby improving the practical application in IOCs.
ISSN:2304-6732