Plasmon‐Enhanced Optical Control of Magnetism at the Nanoscale via the Inverse Faraday Effect
The relationship between magnetization and light has been the subject of intensive research for the past century. Herein, the impact of magnetization on light polarization is well understood. Conversely, the manipulation of magnetism with polarized light is being investigated to achieve all‐optical...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-01-01
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| Series: | Advanced Photonics Research |
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| Online Access: | https://doi.org/10.1002/adpr.202400083 |
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| author | Sergii Parchenko Kevin Hofhuis Agne Åberg Larsson Vassilios Kapaklis Valerio Scagnoli Laura Jane Heyderman Armin Kleibert |
| author_facet | Sergii Parchenko Kevin Hofhuis Agne Åberg Larsson Vassilios Kapaklis Valerio Scagnoli Laura Jane Heyderman Armin Kleibert |
| author_sort | Sergii Parchenko |
| collection | DOAJ |
| description | The relationship between magnetization and light has been the subject of intensive research for the past century. Herein, the impact of magnetization on light polarization is well understood. Conversely, the manipulation of magnetism with polarized light is being investigated to achieve all‐optical control of magnetism, driven by potential technological implementation in spintronics. Remarkable discoveries, such as the single‐pulse all‐optical switching of magnetization in thin films and submicrometer structures, have been reported. However, the demonstration of local optical control of magnetism at the nanoscale has remained elusive. Herein, it is demonstrated that exciting gold nanodiscs with circularly polarized femtosecond laser pulses lead to ultrafast, local, and deterministic control of magnetization in an adjacent magnetic film. This control is achieved by exploiting the magnetic moment generated in plasmonic nanodiscs through the inverse Faraday effect. The results pave the way for light‐driven control in nanoscale spintronic devices and provide important insights into the generation of magnetic fields in plasmonic nanostructures. |
| format | Article |
| id | doaj-art-4cbb4a77f141401889bf3f44b66fc48e |
| institution | Kabale University |
| issn | 2699-9293 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Photonics Research |
| spelling | doaj-art-4cbb4a77f141401889bf3f44b66fc48e2025-01-06T02:15:54ZengWiley-VCHAdvanced Photonics Research2699-92932025-01-0161n/an/a10.1002/adpr.202400083Plasmon‐Enhanced Optical Control of Magnetism at the Nanoscale via the Inverse Faraday EffectSergii Parchenko0Kevin Hofhuis1Agne Åberg Larsson2Vassilios Kapaklis3Valerio Scagnoli4Laura Jane Heyderman5Armin Kleibert6Laboratory for Mesoscopic Systems Department of Materials ETH Zurich 8093 Zurich SwitzerlandLaboratory for Mesoscopic Systems Department of Materials ETH Zurich 8093 Zurich SwitzerlandDepartment of Physics and Astronomy Uppsala University Box 516 751 20 Uppsala SwedenDepartment of Physics and Astronomy Uppsala University Box 516 751 20 Uppsala SwedenLaboratory for Mesoscopic Systems Department of Materials ETH Zurich 8093 Zurich SwitzerlandLaboratory for Mesoscopic Systems Department of Materials ETH Zurich 8093 Zurich SwitzerlandSwiss Light Source Paul Scherrer Institute 5232 Villigen PSI SwitzerlandThe relationship between magnetization and light has been the subject of intensive research for the past century. Herein, the impact of magnetization on light polarization is well understood. Conversely, the manipulation of magnetism with polarized light is being investigated to achieve all‐optical control of magnetism, driven by potential technological implementation in spintronics. Remarkable discoveries, such as the single‐pulse all‐optical switching of magnetization in thin films and submicrometer structures, have been reported. However, the demonstration of local optical control of magnetism at the nanoscale has remained elusive. Herein, it is demonstrated that exciting gold nanodiscs with circularly polarized femtosecond laser pulses lead to ultrafast, local, and deterministic control of magnetization in an adjacent magnetic film. This control is achieved by exploiting the magnetic moment generated in plasmonic nanodiscs through the inverse Faraday effect. The results pave the way for light‐driven control in nanoscale spintronic devices and provide important insights into the generation of magnetic fields in plasmonic nanostructures.https://doi.org/10.1002/adpr.202400083inverse Faraday effectmagnetization controlnanoplasmonicsultrafast dynamics |
| spellingShingle | Sergii Parchenko Kevin Hofhuis Agne Åberg Larsson Vassilios Kapaklis Valerio Scagnoli Laura Jane Heyderman Armin Kleibert Plasmon‐Enhanced Optical Control of Magnetism at the Nanoscale via the Inverse Faraday Effect Advanced Photonics Research inverse Faraday effect magnetization control nanoplasmonics ultrafast dynamics |
| title | Plasmon‐Enhanced Optical Control of Magnetism at the Nanoscale via the Inverse Faraday Effect |
| title_full | Plasmon‐Enhanced Optical Control of Magnetism at the Nanoscale via the Inverse Faraday Effect |
| title_fullStr | Plasmon‐Enhanced Optical Control of Magnetism at the Nanoscale via the Inverse Faraday Effect |
| title_full_unstemmed | Plasmon‐Enhanced Optical Control of Magnetism at the Nanoscale via the Inverse Faraday Effect |
| title_short | Plasmon‐Enhanced Optical Control of Magnetism at the Nanoscale via the Inverse Faraday Effect |
| title_sort | plasmon enhanced optical control of magnetism at the nanoscale via the inverse faraday effect |
| topic | inverse Faraday effect magnetization control nanoplasmonics ultrafast dynamics |
| url | https://doi.org/10.1002/adpr.202400083 |
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