[14a-B414-1~5] Nano-Materials Science for MIR-THz photonics

▲ [14a-B414-4] Improving of Plasmon Controllability in Graphene by Electric or Magnetic Fields

〇Norio KUMADA¹ (1.NTT Basic Res. Labs.)

Keywords:graphene, plasmon, spatial control

Tunability of graphene plasmons by external electric and magnetic fields will enable us to develop programmable plasmonic circuits and metamaterials. Beyond frequency tuning of a graphene plasmon cavity, which has been demonstrated in a variety of structures, we demonstrate active spatial control of graphene plasmons by tailoring carrier density profile [1]. We also show almost dissipationless plasmon transport in one-dimensional edge channels formed under a magnetic field [2].
[1] N.-H. Tu et al., arXiv:1911.08672 (to be published in Communications Materials).
[2] N. Kumada et al., PRL 113, 266601 (2014).