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Conferences > CLEO_QELS > 2018 > FTh3M > FTh3M.2

Topological photonic crystals in the visible: design and angle-resolved characterization of the bulk and edge states

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

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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.

© 2018 The Author(s)

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