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...

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Bibliographic Details
Main Authors: Gabriel Cáceres-Aravena, Bastián Real, Diego Guzmán-Silva, Alberto Amo, Luis E. F. Foa Torres, Rodrigo A. Vicencio
Format: Article
Language:English
Published: American Physical Society 2022-03-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.013185