  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 in order 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
demonstrated graphene plasmon working at 2 {\mu}m 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.
