Introducing cobalt as a potential plasmonic candidate combining optical and magnetic functionalities within the same nanostructure
| Autor: | Jaysen Nelayah, Jean-Yves Piquemal, Idrissa Sow, Nordin Félidj, Sophie Nowak, Macilia Braik, Philippe Decorse, Abderrahmane Belkhir, Silvana Mercone, Marco Faustini |
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| Rok vydání: | 2021 |
| Předmět: |
Coupling
Plasmonic nanoparticles Materials science Nanostructure business.industry Physics::Optics Nanotechnology Context (language use) 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Signal 010309 optics 0103 physical sciences General Materials Science Photonics 0210 nano-technology business Nanoscopic scale Plasmon |
| Zdroj: | Nanoscale. 13:2639-2647 |
| ISSN: | 2040-3372 2040-3364 |
| Popis: | The control of magnetic properties at the nanoscale is a current topic of intense research. It was shown that combining both magnetic and plasmonic nanoparticles (NPs) led to the improvement of their magneto-optical signal. In this context, common strategies consist of the design of bimetallic NPs. However, the understanding of the physics leading to the coupling between magnetic and plasmonic NPs is lacking, preventing any significant progress for the development of future photonic devices. In this article, we propose to focus our attention on an efficient and commonly used magnetic metal, cobalt, and evaluate its plasmonic properties at the nanoscale through the use of NP regular arrays, as a potential candidate combining both optical and magnetic functionalities within the same metal. We show that such NPs display plasmonic properties within a large spectral range from the UV to the NIR spectral range, with efficient quality factors, when the inter-particle distance is properly selected. These as-fabricated simple materials could find applications in integrated photonic devices for telecommunications. |
| Databáze: | OpenAIRE |
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