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Proceedings Paper

Pseudospin-mediated phenomena in photonic graphene (Conference Presentation)
Author(s): Daohong Song; Nikos Efremedis; Zhigang Chen
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Paper Abstract

“Photonic graphene” has been demonstrated as a useful platform to study fundamental physics such as edge states and topological insulators. Recently, we have demonstrated pseudospin-mediated generation of topological charges in photonic graphene. Due to sublattice degree of freedom, charge flipping is observed as the sublattices are selectively excited. Our experimental results are confirmed by numerical simulation as well as by theoretical analysis of the 2D Dirac-Weyl equations. In this talk, we will discuss such pseudospin-related phenomena due to the sublattice degree of freedom, along with our recent work on related phenomena due to the graphene valley degree of freedom.

Paper Details

Date Published: 9 November 2016
PDF: 1 pages
Proc. SPIE 9920, Active Photonic Materials VIII, 99201H (9 November 2016); doi: 10.1117/12.2236239
Show Author Affiliations
Daohong Song, Nankai Univ. (China)
Nikos Efremedis, Univ. of Crete (Greece)
Zhigang Chen, San Francisco State Univ. (United States)
Nankai Univ. (China)


Published in SPIE Proceedings Vol. 9920:
Active Photonic Materials VIII
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

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