Experimental observation of edge states in SSH-Stub photonic lattices
We reveal unconventional edge states in a one-dimensional Stub lattice of coupled waveguides with staggered hoppings. The edge states appear for the same values of hoppings as topological edge states in the Su-Schrieffer-Heeger model. They have different energies depending on the lattice termination...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-03-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.4.013185 |
| _version_ | 1797210823000588288 |
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| author | Gabriel Cáceres-Aravena Bastián Real Diego Guzmán-Silva Alberto Amo Luis E. F. Foa Torres Rodrigo A. Vicencio |
| author_facet | Gabriel Cáceres-Aravena Bastián Real Diego Guzmán-Silva Alberto Amo Luis E. F. Foa Torres Rodrigo A. Vicencio |
| author_sort | Gabriel Cáceres-Aravena |
| collection | DOAJ |
| description | We reveal unconventional edge states in a one-dimensional Stub lattice of coupled waveguides with staggered hoppings. The edge states appear for the same values of hoppings as topological edge states in the Su-Schrieffer-Heeger model. They have different energies depending on the lattice termination and present a remarkable robustness against certain types of disorder. We evidence experimentally the phase transition at which these edge states appear, opening the door to the engineering of one-dimensional lattices with localized edge modes whose energy and location can be controlled at will. |
| first_indexed | 2024-04-24T10:16:43Z |
| format | Article |
| id | doaj.art-ded45b3ef5944d2ba6fed07159af8f55 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:16:43Z |
| publishDate | 2022-03-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-ded45b3ef5944d2ba6fed07159af8f552024-04-12T17:18:45ZengAmerican Physical SocietyPhysical Review Research2643-15642022-03-014101318510.1103/PhysRevResearch.4.013185Experimental observation of edge states in SSH-Stub photonic latticesGabriel Cáceres-AravenaBastián RealDiego Guzmán-SilvaAlberto AmoLuis E. F. Foa TorresRodrigo A. VicencioWe reveal unconventional edge states in a one-dimensional Stub lattice of coupled waveguides with staggered hoppings. The edge states appear for the same values of hoppings as topological edge states in the Su-Schrieffer-Heeger model. They have different energies depending on the lattice termination and present a remarkable robustness against certain types of disorder. We evidence experimentally the phase transition at which these edge states appear, opening the door to the engineering of one-dimensional lattices with localized edge modes whose energy and location can be controlled at will.http://doi.org/10.1103/PhysRevResearch.4.013185 |
| spellingShingle | Gabriel Cáceres-Aravena Bastián Real Diego Guzmán-Silva Alberto Amo Luis E. F. Foa Torres Rodrigo A. Vicencio Experimental observation of edge states in SSH-Stub photonic lattices Physical Review Research |
| title | Experimental observation of edge states in SSH-Stub photonic lattices |
| title_full | Experimental observation of edge states in SSH-Stub photonic lattices |
| title_fullStr | Experimental observation of edge states in SSH-Stub photonic lattices |
| title_full_unstemmed | Experimental observation of edge states in SSH-Stub photonic lattices |
| title_short | Experimental observation of edge states in SSH-Stub photonic lattices |
| title_sort | experimental observation of edge states in ssh stub photonic lattices |
| url | http://doi.org/10.1103/PhysRevResearch.4.013185 |
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