nt - p h / 06 07 00 6 v 1 2 Ju l 2 00 6 A spatially and temporally localized sub - laser - cycle electron source


We present an experimental and numerical study of electron emission from a sharp tungsten tip triggered by sub-8 femtosecond low power laser pulses. This process is non-linear in the laser electric field, and the non-linearity can be tuned via the DC voltage applied to the tip. Numerical simulations of this system show that electron emission takes place… (More)


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