Near-field mapping of three-dimensional surface charge poles for hybridized plasmon modes
Source abstract
Abstract
We describe a new computational approach to mapping three-dimensional (3D) surface charge poles and thus to determine complicated and hybridized plasmon modes in metallic nanostructures via finite element method (FEM) calculations. 3D surface charge distributions at the near-field resonance energies are calculated directly using Gauss’ law. For a nanosphere dimer, we demonstrate that higher-order hybridized plasmon modes can be addressed clearly. As an improvement to conventional mapping approaches, this new approach provides a better understanding of comprehensive physical image of plasmonic systems necessary for fundamental studies and spectroscopy applications.
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Research context
OpenAlex topics: Plasmonic and Surface Plasmon Research · Gold and Silver Nanoparticles Synthesis and Applications · Optical Coatings and Gratings
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Tsinghua University 1 State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, , Beijing 100084, P. R. China
Rice University 2 Department of Materials Science and Nanoengineering & Laboratory for Nanophotonics, , 6100 Main Street, Houston, TX 77005, USA
Tsinghua University 3 Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, , Beijing 100084, P. R. China
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