Experimental demonstration of graphene plasmons working close to the near-infrared window

Zhongli Wang, Tao Li, Kristoffer Almdal, N. Asger Mortensen, Sanshui Xiao, Sokol Ndoni

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Due to strong mode confinement, long propagation distance, and unique tunability, graphene plasmons have been widely explored in the mid-infrared and terahertz windows. However, it remains a big challenge to push graphene plasmons to shorter wavelengths to integrate graphene plasmon concepts with existing mature technologies in the near-infrared region. We investigate localized graphene plasmons supported by graphene nanodisks and experimentally demonstrate graphene plasmon working at 2 μm with the aid of a fully scalable block copolymer self-assembly method. Our results show a promising way to promote graphene plasmons for both fundamental studies and potential applications in the near-infrared window.
Original languageEnglish
JournalOptics Letters
Issue number22
Pages (from-to)5345-5348
Publication statusPublished - 2016


  • physics.optics
  • cond-mat.mes-hall


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