Terahertz Imaging and Spectroscopy of Large-Area Single-Layer Graphene

摘要

THz imaging and spectroscopy using broadband THz pulses map out the THz carrier dynamics of a large-area graphene-on-Si sample, showing that the local sheet-conductivity varies across the sample from σ_s = 1.7×10~(-3) to 2.4×10~(-3) Ω~(-1).