| Autor: |
Ana Díaz-Rubio, Xuchen Wang, Shanhui Fan, Viktar Asadchy, Sergei A. Tretyakov, G. A. Ptitcyn, Mohammad Sajjad Mirmoosa |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials). |
| DOI: |
10.1109/metamaterials49557.2020.9285038 |
| Popis: |
Conventionally, nonreciprocity in time-varying systems is achieved by exploiting both temporal and spatial modulations. In this paper, we introduce a concept of magnetless bianisotropic time-modulated systems that support nonreciprocal wave propagation at the fundamental frequency and use only uniform, solely temporal material modulations. We theoretically explain the nonreciprocal effect by analyzing wave propagation in an unbounded, spatially uniform bianisotropic time-modulated medium. As a simple practical implementation, we design a deeply sub-wavelength bianisotropic metasurface which incorporates a single time-modulated capacitive layer backed by a usual dielectric layer. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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