Direct Observation of Topological Edge States in Silicon Photonic Crystals

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Publication date
DOI http://dx.doi.org/10.1364/CLEO_AT.2019.JM2B.2
Reference N. Parappurath, F. Alpeggiani, L. Kuipers and E. Verhagen, Direct Observation of Topological Edge States in Silicon Photonic Crystals, , (2019)
Group Photonic Forces

We directly observe the states of topological photonic crystals at telecom wavelengths. Using the states’ intrinsic radiation, we measure dispersion, loss, pseudospin, and spin-spin scattering. We image spin-selective unidirectional propagation around sharp corners and junctions.