Utilization of a Dual-Layer Graphene Structure for Slow Light Engineering in the Terahertz Band

Utilization of a Dual-Layer Graphene Structure for Slow Light Engineering in the Terahertz Band | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Utilization of a Dual-Layer Graphene Structure for Slow Light Engineering in the Terahertz Band Abolfazl Vaghayei, Majid Afsahi, Mohammad Danaie This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6881733/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 06 Aug, 2025 Read the published version in Plasmonics → Version 1 posted 19 You are reading this latest preprint version Abstract The proposed structure comprises a unit cell with two dielectric substrates: SiO2 and nine graphene disks, positioned on the lower substrate. Additionally, a square patch of graphene is situated on the upper substrate. The conductive behavior of graphene at terahertz frequencies is described using a specialized model. The impedance and electrical characteristics of this structure are modeled through RLC relationships, and simulations have been conducted to analyze the interaction of terahertz waves with the structure. The results indicate that the Fermi energy of graphene can influence the resonance frequency of the structure, leading to variations in optical properties such as group delay and group velocity. Overall, the findings of this research highlight the potential for optical control and tuning in the terahertz band utilizing graphene and its metamaterials, presenting strategic capabilities for telecommunications and photonic applications. Slow Light Graphene Metasurface Unit Cell Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 06 Aug, 2025 Read the published version in Plasmonics → Version 1 posted Editorial decision: Revision requested 07 Jul, 2025 Reviews received at journal 30 Jun, 2025 Reviews received at journal 27 Jun, 2025 Reviews received at journal 27 Jun, 2025 Reviews received at journal 24 Jun, 2025 Reviews received at journal 21 Jun, 2025 Reviewers agreed at journal 20 Jun, 2025 Reviewers agreed at journal 20 Jun, 2025 Reviews received at journal 19 Jun, 2025 Reviewers agreed at journal 18 Jun, 2025 Reviewers agreed at journal 18 Jun, 2025 Reviewers agreed at journal 18 Jun, 2025 Reviewers agreed at journal 18 Jun, 2025 Reviewers agreed at journal 18 Jun, 2025 Reviewers agreed at journal 18 Jun, 2025 Reviewers invited by journal 18 Jun, 2025 Editor assigned by journal 17 Jun, 2025 Submission checks completed at journal 17 Jun, 2025 First submitted to journal 12 Jun, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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