OSA Advanced Photonics Congress (AP) 2020 (IPR, NP, NOMA, Networks, PVLED, PSC, SPPCom, SOF) 2020
DOI: 10.1364/np.2020.npw1e.6
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Universal mapping of topological singularities

Abstract: We report universal mapping of topological Dirac-like points in momentum-space to optical vortices in real-space. This conversion persists even in stretched lattices, topologically protected by a quantized Berry phase.

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