TY - JOUR
T1 - Efficient nonlinear generation of THz plasmons in graphene and topological insulators
AU - Yao, Xianghan
AU - Tokman, Mikhail
AU - Belyanin, Alexey
PY - 2014/2/5
Y1 - 2014/2/5
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84894441848&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.112.055501
DO - 10.1103/PhysRevLett.112.055501
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AN - SCOPUS:84894441848
SN - 0031-9007
VL - 112
JO - Physical Review Letters
JF - Physical Review Letters
IS - 5
M1 - 055501
ER -