This project will investigate the ultrafast vibrational energy tranfer from C-H bonds on hydrogenated graphene. Energy tranfer on graphene in general shows some unusual behaviour, but due to the low density of C-H bonds on hydrogenated graphene, the vibrational energy tranfer has not yet been studied, but sum-freuquency generation (SFG) spectroscopy promises to be an ideal tool for this purpose. First vibrationally-resolved SFG spectra from thiols on mica have recently been obtained, see graph on the right.