Author(s): Michael Förster, Timo Paschen, Michael Krüger, Christoph Lemell, Georg Wachter, Florian Libisch, Thomas Madlener, Joachim Burgdörfer, and Peter Hommelhoff
By firing laser pulses of two different colors at a nanosized metal tip, researchers create an interference effect that turns electron emission on and off with femtosecond timing.

[Phys. Rev. Lett. 117, 217601] Published Mon Nov 14, 2016