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.

New York: IEEE
Photonic Forces

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