Tunability and Robustness of Dirac Points of Photonic Nanostructures

Hanying Deng*, Xianfeng Chen, Boris A. Malomed, Nicolae C. Panoiu, Fangwei Ye

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

We study the tunability and robustness of photonic Dirac points (DPs) in plasmonic nanostructures. The tunability of the DP is demonstrated in graphene-based photonic superlattices by adjusting the graphene permittivity via the optical Kerr effect or electrical doping. The robustness of DPs is demonstrated in plasmonic lattices by showing that even very high levels of disorder are unable to localize the modes located near the DP. The robustness of the DP also manifests itself in the fact that the inversely-proportional dependence of the transmission on the lattice length near the DP remains unchanged under strong disorder.

Original languageEnglish
Article number5000509
Pages (from-to)98-106
Number of pages9
JournalIEEE Journal of Selected Topics in Quantum Electronics
Volume22
Issue number5
DOIs
StatePublished - 1 Sep 2016

Funding

FundersFunder number
Horizon 2020 Framework Programme648328
European Research Council
National Natural Science Foundation of China11104181, 61475101
Shanghai Municipal Education Commission13ZZ022

    Keywords

    • Dirac points
    • Graphene
    • photonic superlattices
    • structural disorder
    • transmission

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