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Published May 2018 | public
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Topological photonic crystals in the visible: design and angle-resolved characterization of the bulk and edge states

Peng, Siying ORCID icon
Schilder, Nick
Ni, Xiang
Meuret, Sophie
Doeleman, Hugo
Coenen, Toon
Koenderink, Femius
Khanikaev, Alexander
Alù, Andrea
Atwater, Harry A. ORCID icon
Polman, Albert ORCID icon
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Abstract

We fabricated and characterized photonic crystals with non-trivial topological bulk states and pseudo-time-reversal-symmetry protected helical edge states in the visible regime. With a 30-keV electron beam, we excite coherent cathodoluminescence in the nanostructured material and derive photonic band structures.

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© 2018 Optical Society of America.

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Created:
August 19, 2023
Modified:
October 20, 2023