Cross-talk-free, high extinction ratio, and ultra-compact all‑optical 4 × 2 encoder using graphene-based plasmonic waveguides

Cross-talk-free, high extinction ratio, and ultra-compact all‑optical 4 × 2 encoder using graphene-based plasmonic waveguides

Abstract This paper presents an all-optical 4 × 2 encoder based on graphene-plasmonic waveguides for operation in the wavelength range of 8–12 μm. The basic plasmonic waveguide consists of a silicon (Si) strip and a graphene sheet supported by two dielectric ridges. Surface plasmon polaritons (SPPs)...

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Bibliographic Details
Main Authors: Saima Kanwal, Mohammed R. Saeed, Faris K. AL-Shammri, Mir Hamid Rezaei
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
Subjects:
All-optical encoder
High extinction ratio
Plasmonic waveguide
Surface plasmon polariton
Suspended graphene
Cross-talk-free
Online Access:https://doi.org/10.1038/s41598-025-86387-z
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