Finite-Difference Time-Domain Simulation of Wave Transmission Through Space-Time-Varying Media
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866910709784248320 |
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| author | Taravati, Sajjad Kishk, Ahmed A Eleftheriades, George V |
| author_facet | Taravati, Sajjad Kishk, Ahmed A Eleftheriades, George V |
| contents | A comprehensive study on the Finite Difference Time Domain (FDTD) numerical modelling of space- and time-varying media is presented. We investigate the dynamic behavior of oblique incidence of both TM and TE electromagnetic fields on space-timemodulated gratings. In their general form, these media have electrical permittivity, magnetic permeability, and electrical conductivity modulated across both space and time. We provide the FDTDschemes, the Courant-Friedrichs-Lewy (CFL) stability condition and equations for both TM and TE wave illuminations of space-time-varying slabs, along with the boundary conditions for the FDTD scheme. Furthermore, with engaging illustrative examples, we showcase the versatility and applications of space-time-varying media. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_19923 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Finite-Difference Time-Domain Simulation of Wave Transmission Through Space-Time-Varying Media Taravati, Sajjad Kishk, Ahmed A Eleftheriades, George V Optics Applied Physics A comprehensive study on the Finite Difference Time Domain (FDTD) numerical modelling of space- and time-varying media is presented. We investigate the dynamic behavior of oblique incidence of both TM and TE electromagnetic fields on space-timemodulated gratings. In their general form, these media have electrical permittivity, magnetic permeability, and electrical conductivity modulated across both space and time. We provide the FDTDschemes, the Courant-Friedrichs-Lewy (CFL) stability condition and equations for both TM and TE wave illuminations of space-time-varying slabs, along with the boundary conditions for the FDTD scheme. Furthermore, with engaging illustrative examples, we showcase the versatility and applications of space-time-varying media. |
| title | Finite-Difference Time-Domain Simulation of Wave Transmission Through Space-Time-Varying Media |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2409.19923 |