1 citations · 1 across the 6 of their papers we have counts for
6 papers
Exceptional-Point Geometry of Weak Topological Boundary States
Rafael A. Molina, Kevin González, Pedro A. Orellana
In this article, we demonstrate that weak topology can be formulated geometrically in terms of exceptional singularities of an analytically continued Bloch Hamiltonian. A general p…
Topological states and flat bands induced by bound states in the continuum in a ladder-shaped one-dimensional photonic crystal
Sofía Pinto, P. A. Orellana, Sergio Bravo
One-dimensional crystals serve as a versatile platform for engineering nontrivial states, which can be easily explored in transport configurations. In this work, we analyze the pro…
Observation of multi-orbital Fano resonances in photonic lattices
Diego Guzmán-Silva, Maritza Ahumada, Polette Parra-Palavecino +3
Fano resonances are a fundamental physical phenomenon that occurs when an open channel couples with a closed one, resulting in a resonant cancellation of transmission. In this arti…
Bound States in the Continuum in a Double Whispering Gallery Resonator
Alexis R. Legón, M. Ahumada, J. P. Ramos-Andrade +2
In this work, we investigate the single-photon transport through two whispering gallery resonators (WGRs) coupled to a one-dimensional waveguide. Using Green's function formalism,…
Beyond symmetry-protected BICs: transmission through asymmetric crossbar junctions in one-dimensional waveguides
Sofía Pinto, Rafael A. Molina, Pedro A. Orellana
Over the last few decades, the study of Bound States in the Continuum, their formation, and properties has attracted lots of attention, especially in optics and photonics. It is pa…
Fragile dislocation modes in obstructed atomic topological phases
Gabriel Malavé, Jorge Schifferli, Rodrigo Soto-Garrido +2
We here introduce the concept of fragile topological dislocation modes, which are localized only in a fraction of a topological phase, while otherwise leak into the bulk continuum.…