Controlling plasmon-induced transparency of graphene metamolecules with external magnetic field

Jian Qiang Liu, Yu Xiu Zhou, Li Li, Pan Wang, Anatoly V. Zayats

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


We numerically demonstrate dynamically tuneable plasmoninduced transparency in a π-shaped metamolecules made of graphene nanostrips by applying external static magnetic field. It is shown that for graphene nanostrips with appropriate Fermi energy, the resonant wavelength, line-shape, and the polarization of transmitted light in the mid-infrared can be effectively controlled by magnetic field. In particular, giant polarization rotation exceeding 20 ° has been observed in asymmetric graphene metamolecules, which is further enhanced to almost 40 ° due the Faraday effect in the applied magnetic field, at around 9 μm wavelength, much higher frequency than the Faraday rotation observed in a semi-infinite graphene microribbons. The results offer a flexible approach for the development of compact, tunable graphene-based photonic devices.

Original languageEnglish
Pages (from-to)12524-12532
Number of pages9
Issue number10
Publication statusPublished - 2015


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