Probing the Limits to Topological Protection in Photonic Crystal Waveguides and Cavities
Rene Barczyk (AMOLF Institute for Atomic and Molecular Physics)
Sonakshi Arora (TU Delft - QN/Kuipers Lab, Kavli institute of nanoscience Delft)
Thomas Bauer (Kavli institute of nanoscience Delft, TU Delft - QN/Kuipers Lab)
Nikhil Parappurath (AMOLF Institute for Atomic and Molecular Physics)
Ewold Verhagen (AMOLF Institute for Atomic and Molecular Physics)
Kobus Kuipers (Kavli institute of nanoscience Delft, TU Delft - QN/Quantum Nanoscience)
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Abstract
We employ near-and far-field optical microscopy to characterize the propagation of edge states in topological photonic crystal waveguides and cavities. We test fundamental and practical limits to topological protection, quantifying dispersion, loss, and scattering.
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