High topological charge lasing in quasicrystals
Abstract Photonic modes exhibiting a polarization winding akin to a vortex possess an integer topological charge. Lasing with topological charge 1 or 2 can be realized in periodic lattices of up to six-fold rotational symmetry—higher order charges require symmetries not compatible with any two-dimen...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-53952-5 |
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| author | Kristian Arjas Jani Matti Taskinen Rebecca Heilmann Grazia Salerno Päivi Törmä |
| author_facet | Kristian Arjas Jani Matti Taskinen Rebecca Heilmann Grazia Salerno Päivi Törmä |
| author_sort | Kristian Arjas |
| collection | DOAJ |
| description | Abstract Photonic modes exhibiting a polarization winding akin to a vortex possess an integer topological charge. Lasing with topological charge 1 or 2 can be realized in periodic lattices of up to six-fold rotational symmetry—higher order charges require symmetries not compatible with any two-dimensional Bravais lattice. Here, we experimentally demonstrate lasing with topological charges as high as −5, +7, −17 and +19 in quasicrystals. We discover rich ordered structures of increasing topological charges in the reciprocal space. Our quasicrystal design utilizes group theory in determining electromagnetic field nodes, where lossy plasmonic nanoparticles are positioned to maximize gain. Our results open a new path for fundamental studies of higher-order topological defects, coherent light beams of high topological charge, and realizations of omni-directional, flat-band-like lasing. |
| format | Article |
| id | doaj-art-a9101a6e93084dbbad55d373bef9075a |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-a9101a6e93084dbbad55d373bef9075a2025-08-20T02:13:32ZengNature PortfolioNature Communications2041-17232024-11-0115111010.1038/s41467-024-53952-5High topological charge lasing in quasicrystalsKristian Arjas0Jani Matti Taskinen1Rebecca Heilmann2Grazia Salerno3Päivi Törmä4Department of Applied Physics, Aalto University School of ScienceDepartment of Applied Physics, Aalto University School of ScienceDepartment of Applied Physics, Aalto University School of ScienceDepartment of Applied Physics, Aalto University School of ScienceDepartment of Applied Physics, Aalto University School of ScienceAbstract Photonic modes exhibiting a polarization winding akin to a vortex possess an integer topological charge. Lasing with topological charge 1 or 2 can be realized in periodic lattices of up to six-fold rotational symmetry—higher order charges require symmetries not compatible with any two-dimensional Bravais lattice. Here, we experimentally demonstrate lasing with topological charges as high as −5, +7, −17 and +19 in quasicrystals. We discover rich ordered structures of increasing topological charges in the reciprocal space. Our quasicrystal design utilizes group theory in determining electromagnetic field nodes, where lossy plasmonic nanoparticles are positioned to maximize gain. Our results open a new path for fundamental studies of higher-order topological defects, coherent light beams of high topological charge, and realizations of omni-directional, flat-band-like lasing.https://doi.org/10.1038/s41467-024-53952-5 |
| spellingShingle | Kristian Arjas Jani Matti Taskinen Rebecca Heilmann Grazia Salerno Päivi Törmä High topological charge lasing in quasicrystals Nature Communications |
| title | High topological charge lasing in quasicrystals |
| title_full | High topological charge lasing in quasicrystals |
| title_fullStr | High topological charge lasing in quasicrystals |
| title_full_unstemmed | High topological charge lasing in quasicrystals |
| title_short | High topological charge lasing in quasicrystals |
| title_sort | high topological charge lasing in quasicrystals |
| url | https://doi.org/10.1038/s41467-024-53952-5 |
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