Analysis of surface plasmon excitation at terahertz frequencies with highly doped graphene sheets via attenuated total reflection
C How Gan - Applied Physics Letters, 2012 - pubs.aip.org
Excitation of surface plasmons supported by doped graphene sheets at terahertz
frequencies is investigated numerically. To alleviate the momentum mismatch between the
highly confined plasmon modes and the incident radiation, it is proposed to increase the
surface conductivity of graphene through high doping levels or with few-layer graphene. For
currently achievable doping levels, our analysis shows that surface plasmons on monolayer
graphene may be excited at operating frequencies up to about 10 THz (∼ 41.3 meV) with a …
frequencies is investigated numerically. To alleviate the momentum mismatch between the
highly confined plasmon modes and the incident radiation, it is proposed to increase the
surface conductivity of graphene through high doping levels or with few-layer graphene. For
currently achievable doping levels, our analysis shows that surface plasmons on monolayer
graphene may be excited at operating frequencies up to about 10 THz (∼ 41.3 meV) with a …
