{"title":"On the Transmission Line Analogy for Modeling Plasmonic Nanowire Circuits","authors":"D. Dragoman","doi":"10.1007/s11468-024-02542-8","DOIUrl":null,"url":null,"abstract":"<p>Modeling slot waveguides using the analogy with transmission lines in microwaves proved itself to be an accurate and simple method for characterizing plasmonic field propagation. Here, the possibility of generalizing the applicability of this method to plasmonic circuits consisting of nanowires is analyzed. It is found that it can be applied as long as the circuit can be divided in regions with known transverse field distributions and propagation constants, the total matrix characterizing plasmon propagation being composed of propagation and interface matrices, as in slot waveguides, the elements of the latter being, however, defined in terms of butt-coupling transmission coefficients at the interface and not using the simple characteristic impedance expression used for slot waveguides.</p>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":null,"pages":null},"PeriodicalIF":3.3000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasmonics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s11468-024-02542-8","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Modeling slot waveguides using the analogy with transmission lines in microwaves proved itself to be an accurate and simple method for characterizing plasmonic field propagation. Here, the possibility of generalizing the applicability of this method to plasmonic circuits consisting of nanowires is analyzed. It is found that it can be applied as long as the circuit can be divided in regions with known transverse field distributions and propagation constants, the total matrix characterizing plasmon propagation being composed of propagation and interface matrices, as in slot waveguides, the elements of the latter being, however, defined in terms of butt-coupling transmission coefficients at the interface and not using the simple characteristic impedance expression used for slot waveguides.
期刊介绍：
Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons.
Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.
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