研究目的
Investigating the semi-implicit finite-difference time-domain thin-wire scheme for modelling effective surface plasmons in waveguide metamaterials.
研究成果
The semi-implicit FDTD TW scheme allows for larger meshes than the wire radius and its stability condition is determined by only the two meshes in the transverse plane to the wire axis. It is faster than the standard explicit scheme while maintaining the same level of accuracy.
研究不足
The scheme's application is limited to waveguide structures and wire-added plasmonic resonators. The wire radius is assumed to be less than half of the transverse mesh steps.
1：Experimental Design and Method Selection:
The study employs a semi-implicit FDTD TW scheme based on the Newmark-Beta method and the contour-path integral of Maxwell’s equations.
2：Sample Selection and Data Sources:
A wire-added parallel-plate waveguide perturbed with a small gap is used as the model.
3：List of Experimental Equipment and Materials:
Not explicitly mentioned.
4：Experimental Procedures and Operational Workflow:
The scheme's stability, accuracy, and efficiency are assessed through application to the waveguide model.
5：Data Analysis Methods:
The results are compared with those obtained from the standard FDTD TW scheme.
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