Efficient nonlinear generation of THz plasmons in graphene and topological insulators. Academic Article uri icon


  • Surface plasmons in graphene may provide an attractive alternative to noble-metal plasmons due to their tighter confinement, peculiar dispersion, and longer propagation distance. We present theoretical studies of the nonlinear difference frequency generation (DFG) of terahertz surface plasmon modes supported by two-dimensional layers of massless Dirac electrons, which includes graphene and surface states in topological insulators. Our results demonstrate strong enhancement of the DFG efficiency near the plasmon resonance and the feasibility of phase-matched nonlinear generation of plasmons over a broad range of frequencies.

author list (cited authors)

  • Yao, X., Tokman, M., & Belyanin, A

complete list of authors

  • Yao, Xianghan||Tokman, Mikhail||Belyanin, Alexey

publication date

  • January 1, 2014 11:11 AM