Repositori institucional URV
| Autor/es de la URV: | Alvarez Puebla, Ramon Angel / Pazos Pérez, Nicolás Carlos / Turino, Mariacristina |
| Autor según el artículo: | Becerril-Castro, I Brian; Turino, Mariacristina; Pazos-Perez, Nicolas; Xiaofei, Xiao; Levato, Tadzio; Maier, Stefan A; Alvarez-Puebla, Ramon A; Giannini, Vincenzo |
| Direcció de correo del autor: | nicolas.pazos@urv.cat mariacristina.turino@estudiants.urv.cat ramon.alvarez@urv.cat |
| Identificador del autor: | 0000-0002-2326-4231 0000-0003-3053-4970 0000-0003-4770-5756 |
| Año de publicación de la revista: | 2024 |
| Tipo de publicación: | Journal Publications |
| Referencia de l'ítem segons les normes APA: | Becerril-Castro, I Brian; Turino, Mariacristina; Pazos-Perez, Nicolas; Xiaofei, Xiao; Levato, Tadzio; Maier, Stefan A; Alvarez-Puebla, Ramon A; Gianni (2024). Wet Chemical Engineering of Nanostructured GRIN Lenses. Advanced Optical Materials, 12(20), -. DOI: 10.1002/adom.202400485 |
| Referencia al articulo segun fuente origial: | Advanced Optical Materials. 12 (20): |
| Resumen: | Gradient-index (GRIN) lenses have long been recognized for their importance in optics as a result of their ability to manipulate light. However, traditional GRIN lenses are limited on a scale of tens of microns, impeding their integration into nanoscale optical devices. This study presents a groundbreaking self-assembled method that overcomes this limitation, allowing for constructing GRIN lenses at an extremely small dimension. The self-assembly process offers several advantages, including creating highly precise, scalable, cost-effective, and complex structures that eliminate the need for intricate and time-consuming manual assembly. By engineering densely packed arrays of metallic nanoparticles, exceptional control over the local refractive index has been achieved. This is accomplished by layer-by-layer assembly of gold nanoparticles of different sizes over silica beads. A GRIN lens light-sink is built where light is preferentially directed toward the center, which is corroborated by measuring the fluorescence of Rhodamine B (RhB) in the inside. Unlike traditional bulky macroscopic GRIN lenses, light-sinks boast a size under 2.5 mu m. Notably, the self-focusing effects of this design allowed us to track the growth of single-nanoparticle layers using SERS (Surface-Enhanced Raman Spectroscopy). These results pave the way for designing and developing lens-like devices at the nanoscale, allowing unprecedented light manipulation. By engineering densely packed arrays of metallic nanoparticles, a GRIN lens light-sink is built where light is preferentially directed toward the center. Unlike traditional bulky macroscopic GRIN lenses, this light-sink features a size under 2.5 mu m, with exceptional control over the local refractive index. image |
| DOI del artículo: | 10.1002/adom.202400485 |
| Enlace a la fuente original: | https://onlinelibrary.wiley.com/doi/10.1002/adom.202400485 |
| Versión del articulo depositado: | info:eu-repo/semantics/publishedVersion |
| Acceso a la licencia de uso: | https://creativecommons.org/licenses/by/3.0/es/ |
| Departamento: | Química Física i Inorgànica |
| URL Documento de licencia: | https://repositori.urv.cat/ca/proteccio-de-dades/ |
| Áreas temáticas: | Atomic and molecular physics, and optics Electronic, optical and magnetic materials Materials science, multidisciplinary Optics |
| Palabras clave: | Grin lens Hierarchical plasmonic nanostructures Nanolense Nanolenses |
| Entidad: | Universitat Rovira i Virgili |
| Fecha de alta del registro: | 2024-11-02 |
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