Mechanism of Laser-induced Field Emission
Mesoscale and Nanoscale Physics
2011-08-19 v1
Abstract
We have measured electron energy distribution curves (EDCs) of the laser-induced field emission from a tungsten tip. Field emission from photo-excited nonequilibrium electron distributions were clearly observed, while no enhanced field emission due to optical electric fields appeared up to values of 1.3 V/nm. Thus, we experimentally confirm the emission mechanism. Simulated transient EDCs show that electron dynamics plays a significant role in the laser-induced field emission. The results should be useful to find optimal parameters for defining the temporal and spectral characteristics of electron pulses for many applications based on pulsed field emission.
Keywords
Cite
@article{arxiv.1103.4310,
title = {Mechanism of Laser-induced Field Emission},
author = {Hirofumi Yanagisawa and Matthias Hengsberger and Dominik Leuenberger and Martin Klöckner and Christian Hafner and Thomas Greber and Jürg Osterwalder},
journal= {arXiv preprint arXiv:1103.4310},
year = {2011}
}
Comments
4 pages 4 figures 1 table, submitted to Physical Review Letters