Abstract
The phase of the field oscillations with respect to the peak of a laser pulse influences the light field evolution as the pulse length becomes comparable to the wave cycle and, hence, affects the interaction of intense few-cycle pulses with matter. We theoretically investigate photoelectron emission induced by an intense, few-cycle laser pulse from a metal surface (jellium) within the framework of time-dependent density functional theory and find a pronounced dependence of the photocurrent. Our results reveal a promising route to measuring of few-cycle light pulses ( at ) at moderate intensity levels () using a solid-state device.
- Received 22 August 2002
DOI:https://doi.org/10.1103/PhysRevLett.90.076403
©2003 American Physical Society