Topological Protection of Light Propagation in Photonic Crystals

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DOI http://dx.doi.org/10.1109/ECOC48923.2020.9333225.
Reference E. Verhagen, N. Parappurath, S. Arora, R. Barczyk, F. Alpeggiani and L.K. Kuipers: Topological Protection of Light Propagation in Photonic Crystals In: 2020 European Conference on Optical Communications (ECOC), New York: IEEE, 2020. - pp. 1-4
Group Photonic Forces

Two-dimensional photonic crystals allow for various types of photonic topological insulators. In this paper, we present our efforts to directly image on-chip light propagation in topological edge states. We quantify the robustness of such states to scattering at sharp corners and defects.