Dispersion and losses of plasmons along simple metasurfaces: the analysis of dispersion equations
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866929733763072000 |
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| author | Davidovich, Michael V. |
| author_facet | Davidovich, Michael V. |
| contents | The flat metasurfaces described by tensor surface conductivity, the transverse size of which is small compared to the wavelength, are considered. In this case, we introduce two-dimensional surface conductivity for them, as well as for infinitely thin conductive sheets of graphene type. The method of Green's tensor functions of electrodynamics connecting fields and current densities, as well as the mode matching technique, are used. Conductive films on substrates are considered, including layered substrates of finite thickness with periodic layers and infinite substrates, as well as gradient substrates with a dependence of the dielectric constant on the thickness. Two-dimensional periodic structures of conductive films and dielectric films doped with nanoparticles are also analyzed. The possibility of applying the method to diffraction of surface plasmons on metasurface inhomogeneities is analyzed. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2502_19440 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Dispersion and losses of plasmons along simple metasurfaces: the analysis of dispersion equations Davidovich, Michael V. Mesoscale and Nanoscale Physics 93C20 The flat metasurfaces described by tensor surface conductivity, the transverse size of which is small compared to the wavelength, are considered. In this case, we introduce two-dimensional surface conductivity for them, as well as for infinitely thin conductive sheets of graphene type. The method of Green's tensor functions of electrodynamics connecting fields and current densities, as well as the mode matching technique, are used. Conductive films on substrates are considered, including layered substrates of finite thickness with periodic layers and infinite substrates, as well as gradient substrates with a dependence of the dielectric constant on the thickness. Two-dimensional periodic structures of conductive films and dielectric films doped with nanoparticles are also analyzed. The possibility of applying the method to diffraction of surface plasmons on metasurface inhomogeneities is analyzed. |
| title | Dispersion and losses of plasmons along simple metasurfaces: the analysis of dispersion equations |
| topic | Mesoscale and Nanoscale Physics 93C20 |
| url | https://arxiv.org/abs/2502.19440 |