Control of the diffracted response of a metallic wire array with double period: experimental demonstration
In recent papers, it has been theoretically shown that by using dual-period wire gratings, it is possible to control the relative efficiencies of the diffracted orders, regardless of the wires` material, incident polarization and wavelength. In this Letter, we experimentally demonstrate, for the fir...
| Autores: | , , , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2014 |
| País: | Argentina |
| Recursos: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositório: | CONICET Digital (CONICET) |
| Idioma: | inglês |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/4678 |
| Acesso em linha: | http://hdl.handle.net/11336/4678 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Dual-Period Structures Diffraction Gratings Nanofabrication Subwavelength Structures https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| Resumo: | In recent papers, it has been theoretically shown that by using dual-period wire gratings, it is possible to control the relative efficiencies of the diffracted orders, regardless of the wires` material, incident polarization and wavelength. In this Letter, we experimentally demonstrate, for the first time, that by appropriately choosing the geometrical parameters of a nanometric periodic structure, it is possible to control the optical response in the visible range. We show examples of nanostructures designed to cancel out or to intensify a particular diffraction order. Such nanostructures allow a broad control over the directionality and the intensity of the diffracted light, which makes them useful for applications such as highly directional optical nanoantennas and photonic multiplexers. |
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