| Autor: |
Hadad, Y., Sounas, D. L., Alu, A. |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Phys. Rev. B 92, 100304 (2015) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.92.100304 |
| Popis: |
Metasurfaces characterized by a transverse gradient of local impedance have recently opened exciting directions for light manipulation at the nanoscale. Here we add a temporal gradient to the picture, showing that spatio-temporal variations over a surface may largely extend the degree of light manipulation in metasurfaces, and break several of their constraints associated to symmetries. As an example, we synthesize a non-reciprocal classical analogue to electromagnetic induced transparency, opening a narrow window of one-way transmission in an otherwise opaque surface. These properties pave the way to magnetic free, planarized non-reciprocal ultrathin surfaces for free-space isolation. |
| Databáze: |
arXiv |
| Externí odkaz: |
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