Attosecond Field Emission
Abstract
Field-emission of electrons underlies major advances in science and technology, ranging from imaging the atomic-scale structure of matter to signal processing at ever-higher frequencies. The advancement of these applications to their ultimate limits of temporal resolution and frequency calls for techniques that can confine and probe the field emission on the sub-femtosecond time scale. We used intense, sub-cycle transients to induce optical field emission of electron pulses from tungsten nanotips and a weak replica of the same transient to directly probe the emission dynamics in real-time. Access into the temporal profile of the emerging electron pulses, including the duration = (53 as 5 as) and chirp, and the direct probing of nanoscale near-fields, open new prospects for research and applications at the interface of attosecond physics and nanooptics.
Cite
@article{arxiv.2206.08895,
title = {Attosecond Field Emission},
author = {H. Y. Kim and M. Garg and S. Mandal and L. Seiffert and T. Fennel and E. Goulielmakis},
journal= {arXiv preprint arXiv:2206.08895},
year = {2023}
}