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Conferences > CLEO_QELS > 2016 > FTu1A > FTu1A.4

Experimental demonstration of valley-dependent topological charge flipping in photonic graphene

Daohong Song, Jing Su, Xiuying Liu, Shiqiang Xia, Daniel Gallardo, Liqin Tang, Jingjun Xu, and Zhigang Chen

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Abstract

We report on pseudospin-mediated vortex phenomena arising from valley degree of freedom in photonic graphene. Topological charge flipping is observed by selective excitation of the two inequivalent valleys.

© 2016 Optical Society of America

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