Channel competition in emitter-plasmon coupling.

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2019
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Abstract
When an emitter is close to a plasmonic nanoantenna, besides coupling to the dipolar antenna mode, the emitter also considerably couples to a superposition of the high-order modes, referred to as a pseudomode. We comprehensively investigate the differences between the dipolar mode channel and the pseudomode channel in a representative system where a dipole emitter couples to a silver nanorod. The two channels are shown to be distinct in their mechanisms, characteristics (including chromatic dispersion and field distribution), and dependences on system parameters (including emitter-antenna distance, antenna geometry, and material loss). The study provides physical insight and reveals important design rules for controlling the competition between the two channels.
Reference Key
xia2019channeloptics Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Xia, Juan;Tang, Jianwei;Bao, Fanglin;Evans, Julian;He, Sailing;
Journal Optics express
Year 2019
DOI
10.1364/OE.27.030893
URL
Keywords
terahertz metamaterial absorber nanoantenna ohmic absorption

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