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9 November 2016 Pseudospin-mediated phenomena in photonic graphene (Conference Presentation)
Daohong Song, Nikos Efremedis, Zhigang Chen
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Proceedings Volume 9920, Active Photonic Materials VIII; 99201H (2016) https://doi.org/10.1117/12.2236239
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States
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.
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Daohong Song, Nikos Efremedis, and Zhigang Chen "Pseudospin-mediated phenomena in photonic graphene (Conference Presentation)", Proc. SPIE 9920, Active Photonic Materials VIII, 99201H (9 November 2016); https://doi.org/10.1117/12.2236239
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KEYWORDS
Graphene
Dielectrics
Numerical simulations
Physics
Current controlled current source
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