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Topological protection of photonic mid-gap cavity modes
Jiho Noh, Wladimir A. Benalcazar, Sheng Huang +4
Defect modes in two-dimensional periodic photonic structures have found use in a highly diverse set of optical devices. For example, photonic crystal cavities confine optical modes…
Experimental observation of optical Weyl points
Jiho Noh, Sheng Huang, Daniel Leykam +3
Weyl fermions are hypothetical two-component massless relativistic particles in three-dimensional (3D) space, proposed by Hermann Weyl in 1929. Their band-crossing points, called '…
Topological Protection of Photonic Path Entanglement
Mikael C. Rechtsman, Yaakov Lumer, Yonatan Plotnik +3
The recent advent of photonic topological insulators has opened the door to using the robustness of topologically protected transport (originated in the domain of condensed matter…
Anomalous Topological Phases and Unpaired Dirac Cones in Photonic Floquet Topological Insulators
Daniel Leykam, M. C. Rechtsman, Y. D. Chong
We propose a class of photonic Floquet topological insulators based on staggered helical lattices and an efficient numerical method for calculating their Floquet bandstructure. The…