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Sharp metallic nanotapers irradiated with few-cycle laser pulses are emergingas a source of highly confined coherent electron wavepackets with attosecondduration and strong directivity. The possibility to steer, control or switchsuch electron wavepackets by light is expected to pave the way towards directvisualization of nanoplasmonic field dynamics and real-time probing of electronmotion in solid state nanostructures. Such pulses can be generated bystrong-field induced tunneling and acceleration of electrons in the near-fieldof sharp gold tapers within one half-cycle of the driving laser field. Here, weshow the effect of the carrier-envelope phase of the laser field on thegeneration and motion of strong-field emitted electrons from such tips. This isa step forward towards controlling the coherent electron motion in and aroundmetallic nanostructures on ultrashort length and time scales.

Carrier-envelope phase effects on the strong-field photoemission of electrons from metallic nanostructures