Güdde, J., et al. “Generation and Time-Resolved Detection of Coherently Controlled Electric Currents at Surfaces.”10.1364/fio.2008.fmi3__Frontiers in Optics 2008/Laser Science XXIV/Plasmonics and Metamaterials/Optical Fabrication and Testing, 2008, doi:10.1364/fio.2008.fmi3.