Experimental observation of edge states in SSH-Stub photonic lattices
| Autor: | Gabriel Cáceres-Aravena, Bastián Real, Diego Guzmán-Silva, Alberto Amo, Luis E. F. Foa Torres, Rodrigo A. Vicencio |
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| Přispěvatelé: | Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 (PhLAM), Université de Lille-Centre National de la Recherche Scientifique (CNRS), ANR-16-IDEX-0004,ULNE,ULNE(2016) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Physical Review Research Physical Review Research, 2022, 4 (1), pp.013185. ⟨10.1103/PhysRevResearch.4.013185⟩ Phys. Rev. Res. |
| ISSN: | 2643-1564 |
| DOI: | 10.1103/PhysRevResearch.4.013185⟩ |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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