Contacts:
Supervisors:
Prof. Francesco Pineider
Title:
Functionalizing plasmonic nanostructured surfaces using magnetic nanoparticles for high-density data storage
Abstract:
Through magnetoplasmonics, the combination of magnetic and plasmonic materials, one can exploit the interplay of light and magnetism to envisage technological applications like all-optical magnetic switching, leading to the realization of densely packed and fast switchable bits. The approach that we chose to pursuit toward this aim is to functionalize plasmonic nanoantennas with magnetic metal oxides nanoparticles, in order to study how these two elements interact. The plasmonic nanoantennas are gold nanostructures evaporated on glass surfaces. These nanostructured surfaces are realized by Goteborg University through soft lithographic techniques (i.e. hole-mask colloidal lithography using polystyrene nanospheres). In this way it is possible to obtain non-interacting nanoantennas supporting Localized Surface Plasmons Resonance (LSPR), the collective oscillation of free electrons confined in a metal nanostructure. This kind of nanostructures are able to collect external light and to concentrate the electric field carried by it in some specific hot-spots. By arranging the magnetic nanoparticles in these hot-spots we aim at tailoring light-matter interactions at the nanoscale.
Publications:
...
Oral communications at congress:
- “Self-Assembly of Magnetic Nanoparticles over Plasmonic Nanoantennas” at International School of Plasmonics and Nano-Optics, Cetraro (Cs), 15-18.06.2018, Pitch presentation.
Poster communications at congress:
- ”Self-Assembly of Magnetic Nanoparticles over Plasmonic Nanoantennas” Gaia Petrucci, Alessio Gabbani, Elvira Fantechi, Alexandre Dmitriev, Massimo Gurioli, Andrea Caneschi, Claudio Sangregorio, Francesco Pineider at Workshop Plasmonica 2018, Firenze, 4-6.07.2018.
- “Plasmonic Nanoantennas: Toward the Optical Control of the Magnetization of Nanoparticles” Gaia Petrucci, Alessio Gabbani, Elvira Fantechi, Alexandre Dmitriev, Massimo Gurioli, Andrea Caneschi, Claudio Sangregorio, Francesco Pineider at European School on Magnetism - Magnetism by light, Cracovia, 17-28.09.2018.
