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Directional beaming of light from a subwavelength metal slit with phase-gradient metasurfaces
In this article, we demonstrate directional beaming of light from a metal nanoslit surrounded with phase-gradient metasurfaces on both sides. Distinct from the grating-based beaming structures, here the momentum mismatch between the surface wave and radiation wave is overcome by the phase-gradient m...
| Autores principales: | , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Nature Publishing Group UK
2017
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5608909/ https://www.ncbi.nlm.nih.gov/pubmed/28935881 http://dx.doi.org/10.1038/s41598-017-09726-9 |