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.

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Publisher New York: IEEE
Persistent URL dx.doi.org/10.1364/CLEO_AT.2019.JM2B.2
Citation
Parappurath, N, Alpeggiani, F, Kuipers, L, & Verhagen, E. (2019). Direct Observation of Topological Edge States in Silicon Photonic Crystals. In CLEO: Applications and Technology, paper JM2B. 2. New York: IEEE. doi:10.1364/CLEO_AT.2019.JM2B.2