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Updated: May 28, 2025

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A Computational Maxwell Solver for Nonlocal Feibelman Parameters in Plasmonics.

Lorenz Huber1, Ulrich Hohenester1

  • 1Institute of Physics, University of Graz, Universitätsplatz 5, 8010 Graz, Austria.

The Journal of Physical Chemistry. C, Nanomaterials and Interfaces
|February 12, 2025
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Summary
This summary is machine-generated.

This study introduces nonlocal Feibelman parameters for mesoscopic boundary conditions, improving classical Maxwell equations for nanoscale quantum surface effects. Results match Mie solutions, validating the computational approach for nanophotonics.

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Area of Science:

  • Computational electromagnetics
  • Condensed matter physics
  • Nanophotonics

Background:

  • Classical Maxwell equations lack quantum surface effects.
  • Nanoscale fields necessitate considering nonlocality parallel to interfaces.
  • Feibelman parameters offer a way to include quantum effects.

Purpose of the Study:

  • Develop methodology for mesoscopic boundary conditions with nonlocal Feibelman parameters.
  • Implement these conditions in a boundary element method Maxwell solver.
  • Validate the approach by comparing with established solutions.

Main Methods:

  • Developed a computational framework for mesoscopic boundary conditions.
  • Incorporated nonlocal Feibelman parameters into the model.
  • Utilized the boundary element method for Maxwell's equations.
  • Compared results with Mie theory for spherical nanoparticles.

Main Results:

  • Successfully implemented nonlocal Feibelman parameters in a Maxwell solver.
  • Demonstrated excellent agreement between the new method and Mie solutions.
  • Validated the computational approach for nanoscale electromagnetic phenomena.

Conclusions:

  • The developed methodology accurately accounts for quantum surface effects.
  • Nonlocal Feibelman parameters are crucial for nanoscale field variations.
  • The boundary element method solver provides a reliable tool for nanophotonics research.