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A spiral plasmonic lens with directional excitation of surface plasmons
Conventional plasmonic lenses are composed of curved slits carved through metallic films. Here, we propose a new plasmonic lens based on a metallic slit with an auxiliary groove. When the lens is illumined normally, only inward surface plasmon polaritons (SPPs) can be generated and then focused into...
Autores principales: | Guo, Qingrui, Zhang, Chi, Hu, Xinhua |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4999813/ https://www.ncbi.nlm.nih.gov/pubmed/27562227 http://dx.doi.org/10.1038/srep32345 |
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