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Abstract
The impact of plasmonic surface lattice resonances on the magneto-optical properties and energy absorption efficiency has been studied in arrays of [Co/Gd/Pt]N multilayer nanodisks. Varying the light wavelength, the disk diameter, and the period of the array, it is demonstrated that surface lattice resonances allow all-optical single pulse switching of [Co/Gd/Pt]N nanodisk arrays with an energy 400% smaller than the energy needed to switch a continuous [Co/Gd/Pt]N film. Moreover, the magneto-optical Faraday effect is enhanced at the resonance condition by up to 5,000%. The influence of the disk diameter and array period on the amplitude, width and position of the surface lattice resonances is in qualitative agreement with theoretical calculations and opens the way to designing magnetic metasurfaces for all-optical magnetization switching applications.
Original language | English |
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Article number | 2204683 |
Number of pages | 6 |
Journal | Advanced Science |
Volume | 10 |
Issue number | 4 |
Early online date | 11 Dec 2022 |
DOIs | |
Publication status | Published - 3 Feb 2023 |
MoE publication type | A1 Journal article-refereed |
Keywords
- all-optical magnetization switching
- plasmonics
- surface lattice resonance
- ultrafast physics
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Dive into the research topics of 'Energy Efficient Single Pulse Switching of [Co/Gd/Pt]N Nanodisks Using Surface Lattice Resonances'. Together they form a unique fingerprint.Projects
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Ionic control of electronic, magnetic, and plasmonic nanomaterials
van Dijken, S., Freire Fernandez, F., Perumbilavil, S., Lepikko, S., Farhan, A., Hagnäs, R. & Ameziane, M.
01/09/2018 → 31/08/2022
Project: Academy of Finland: Other research funding