Optical skyrmion lattice in evanescent electromagnetic fields
| Autor: | Shai Tsesses, Kobi Cohen, Netanel H. Lindner, Bergin Gjonaj, Evgeny Ostrovsky, Guy Bartal |
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| Rok vydání: | 2018 |
| Předmět: |
Physics
Multidisciplinary Spintronics Solid-state physics Condensed matter physics business.industry Skyrmion Physical system Magnetic storage 02 engineering and technology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology 01 natural sciences Surface plasmon polariton Topological defect law.invention law 0103 physical sciences Photonics 010306 general physics 0210 nano-technology business |
| Zdroj: | Science |
| ISSN: | 0036-8075 |
| DOI: | 10.1126/science.aau0227 |
| Popis: | Topological defects play a key role in a variety of physical systems, ranging from high-energy to solid state physics. They yield fascinating emergent phenomena and serve as a bridge between the microspic and macroscopic world. A skyrmion is a unique type of topological defect, showing great promise for applications in the fields of magnetic storage and spintronics. Here, we discover and observe optical skyrmion lattices that can be easily created and controlled, while illustrating their robustness to imperfections. Optical skyrmions are experimentally demonstrated by interfering surface plasmon polaritons and are measured via phase-resolved near-field optical microscopy. This discovery could give rise to new physical phenomena involving skyrmions and exclusive to photonic systems; open up new possibilities for inducing skyrmions in material systems through light-matter interactions; and enable applications in optical information processing, transfer and storage. |
| Databáze: | OpenAIRE |
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