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Observation of unidirectional soliton-like edge states in nonlinear Floquet topological insulators
Sebabrata Mukherjee, Mikael C. Rechtsman
A salient feature of solid-state topological materials in two dimensions is the presence of conducting electronic edge states that are insensitive to scattering by disorder. Such u…
Observation of a higher-order topological bound state in the continuum
Alexander Cerjan, Marius Jürgensen, Wladimir A. Benalcazar +2
Higher-order topological insulators are a recently discovered class of materials that can possess zero-dimensional localized states regardless of the dimension of the lattice. Here…
Landau levels in strained two-dimensional photonic crystals
J. Guglielmon, M. C. Rechtsman, M. I. Weinstein
The principal use of photonic crystals is to engineer the photonic density of states, which controls light-matter coupling. We theoretically show that strained 2D photonic crystals…
Observation of a charge-2 photonic Weyl point in the infrared
Sachin Vaidya, Jiho Noh, Alexander Cerjan +1
Weyl points are robust point degeneracies in the band structure of a periodic material, which act as monopoles of Berry curvature. They have been at the forefront of research in th…