Nanolocalized Nonlinear Electron Photoemission under Coherent Control

We theoretically show that two-photon coherent control yields electron photoemission from metal nanostructures that is localized in nano-size hot spots whose positions are controllable on a nanometer scale, in agreement with recent experiments. We propose to use silver V-shapes as taylored nanoantennas for which the position of the coherently controllable photoelectron-emission hot spot can be deterministically predicted. We predict that the low-frequency, high-intensity (quasistationary) excitation of the photoemission leads to an exponentially high contrast of the coherent control. REFERENCES M. I. Stockman and P. Hewageegana, ``Nanolocalized Nonlinear Electron Photoemission under Coherent Control'', Nano Lett. 5(11), 2325-2329 (2005)