Figure 2From: Coherent anti-Stokes Raman scattering enhancement of thymine adsorbed on graphene oxideRaman spectra of HOPG and monolayer graphene and CARS spectrum of HOPG. Raman spectra of HOPG (1) and monolayer graphene on Cu (3) at λex = 633 nm. CARS spectrum of HOPG (2).Back to article page