Topological Protection in Radiative Photonic Crystal Cavities

Conference paper (2022)

Authors

R.T. Barczyk AMOLF
S. Arora Kavli institute of nanoscience Delft, QN/Kuipers Lab - AS
T.A. Bauer QN/Kuipers Lab - AS , Kavli institute of nanoscience Delft
L. Kuipers QN/Quantum Nanoscience , Kavli institute of nanoscience Delft
E. Verhagen AMOLF
Research Group
QN/Kuipers Lab (AS) (TU Delft)
Copyright: © 2022 R.T. Barczyk, N. Parappurath, S. Arora, T.A. Bauer, L. Kuipers, E. Verhagen
DOI: https://doi.org/10.1109/Metamaterials54993.2022.9920849
More Info
expand_more

Published Date

2022

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Applied Sciences

Department

QN/Quantum Nanoscience

Research Group

QN/Kuipers Lab

Abstract

We study the signatures of topological light confinement in the leakage radiation of two-dimensional topological photonic crystal cavities that feature the quantum spin Hall effect at telecom wavelengths. The mode profiles in real and momentum space are retrieved using far field imaging and Fourier spectropolarimetry. We examine the scaling behavior of mode spectra, observe band-inversion-induced confinement, and demonstrate hallmarks of topological protection in the loss rates, which are largely unaffected by cavity shape and size.

Files

Topological_Protection_in_Radi... (.pdf)
(.pdf | 1.69 Mb)
- Embargo expired in 01-07-2023