Vortex solitons in twisted circular waveguide arrays
We address the formation of topological states in twisted circular waveguide arrays and find that twisting leads to important differences of the fundamental properties of new vortex solitons with opposite topological charges that arise in the nonlinear regime. We find that such system features the r...
| Authors: | ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2022 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:upcommons.upc.edu:2117/376512 |
| Online Access: | https://hdl.handle.net/2117/376512 https://dx.doi.org/10.1103/PhysRevLett.129.123903 |
| Access Level: | Open access |
| Keyword: | Solitons Wave guides -- Mathematical models Applications of soft matter Waveguides Waveguide arrays Guies d'ones -- Models matemàtics Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica |
| _version_ | 1878737361865539584 |
|---|---|
| author | Dong, Liangwei |
| author2 | Kartashov, Yaroslav V. Torner Sabata, Lluís|||0000-0002-6491-4210 Ferrando, Albert |
| author2_role | author author author |
| author_browse | Dong, Liangwei Ferrando, Albert Kartashov, Yaroslav V. Torner Sabata, Lluís|||0000-0002-6491-4210 |
| author_facet | Dong, Liangwei Kartashov, Yaroslav V. Torner Sabata, Lluís|||0000-0002-6491-4210 Ferrando, Albert |
| author_role | author |
| collection | UPCommons. Portal del coneixement obert de la UPC |
| description | We address the formation of topological states in twisted circular waveguide arrays and find that twisting leads to important differences of the fundamental properties of new vortex solitons with opposite topological charges that arise in the nonlinear regime. We find that such system features the rare property that clockwise and counterclockwise vortex states are nonequivalent. Focusing on arrays with C6v discrete rotation symmetry, we find that a longitudinal twist stabilizes the vortex solitons with the lowest topological charges m=±1, which are always unstable in untwisted arrays with the same symmetry. Twisting also leads to the appearance of instability domains for otherwise stable solitons with m=±2 and generates vortex modes with topological charges m=±3 that are forbidden in untwisted arrays. By and large, we establish a rigorous relation between the discrete rotation symmetry of the array, its twist direction, and the possible soliton topological charges. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_9ea1cdcec4326cf40a7fade74ee2cbbf |
| institution | Universitat Politècnica de Catalunya (UPC) |
| instname_str | Universitat Politècnica de Catalunya (UPC) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:upcommons.upc.edu:2117/376512 |
| publishDate | 2022 |
| publishDateSort | 2022 |
| publisher | American Institute of Physics (AIP) |
| publisherStr | American Institute of Physics (AIP) |
| reponame_str | UPCommons. Portal del coneixement obert de la UPC |
| spelling | Vortex solitons in twisted circular waveguide arrays Dong, Liangwei Kartashov, Yaroslav V. Torner Sabata, Lluís|||0000-0002-6491-4210 Ferrando, Albert Solitons Wave guides -- Mathematical models Applications of soft matter Waveguides Waveguide arrays Guies d'ones -- Models matemàtics Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica We address the formation of topological states in twisted circular waveguide arrays and find that twisting leads to important differences of the fundamental properties of new vortex solitons with opposite topological charges that arise in the nonlinear regime. We find that such system features the rare property that clockwise and counterclockwise vortex states are nonequivalent. Focusing on arrays with C6v discrete rotation symmetry, we find that a longitudinal twist stabilizes the vortex solitons with the lowest topological charges m=±1, which are always unstable in untwisted arrays with the same symmetry. Twisting also leads to the appearance of instability domains for otherwise stable solitons with m=±2 and generates vortex modes with topological charges m=±3 that are forbidden in untwisted arrays. By and large, we establish a rigorous relation between the discrete rotation symmetry of the array, its twist direction, and the possible soliton topological charges. Y.V.K., A.F. and L.T. acknowledge grant CEX2019-000910-S funded by MCIN/AEI/ 10.13039/501100011033, Fundació Cellex, Fundació Mir-Puig, and Generalitat de Catalunya (CERCA, AGAUR). A.F. thanks the support of MCIN of Spain through the project PID2020-120484RB-I00 and Generalitat Valenciana, Spain (grant PROMETEO/2021/082). Peer Reviewed American Institute of Physics (AIP) https://hdl.handle.net/2117/376512 https://dx.doi.org/10.1103/PhysRevLett.129.123903 |
| spellingShingle | Vortex solitons in twisted circular waveguide arrays Dong, Liangwei Solitons Wave guides -- Mathematical models Applications of soft matter Waveguides Waveguide arrays Guies d'ones -- Models matemàtics Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica |
| title | Vortex solitons in twisted circular waveguide arrays |
| title_full | Vortex solitons in twisted circular waveguide arrays |
| title_fullStr | Vortex solitons in twisted circular waveguide arrays |
| title_full_unstemmed | Vortex solitons in twisted circular waveguide arrays |
| title_short | Vortex solitons in twisted circular waveguide arrays |
| title_sort | Vortex solitons in twisted circular waveguide arrays |
| topic | Solitons Wave guides -- Mathematical models Applications of soft matter Waveguides Waveguide arrays Guies d'ones -- Models matemàtics Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica |
| topic_facet | Solitons Wave guides -- Mathematical models Applications of soft matter Waveguides Waveguide arrays Guies d'ones -- Models matemàtics Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica |
| url | https://hdl.handle.net/2117/376512 https://dx.doi.org/10.1103/PhysRevLett.129.123903 |