Strong-Field Above-Threshold Photoemission from Sharp Metal Tips

Journal article

Publication Details

Author(s): Schenk M, Krüger M, Hommelhoff P
Journal: Physical Review Letters
Publication year: 2010
Volume: 105
ISSN: 0031-9007
Language: English


We present energy-resolved measurements of electron emission from sharp
metal tips driven with low energy pulses from a few-cycle laser
oscillator. We observe above-threshold photoemission with a photon order
of up to 9. At a laser intensity of ∼2×1011  W/cm2
the suppression of the lowest order peak occurs, indicating the onset
of strong-field effects. We also observe peak shifting linearly with
intensity, with a slope of around −1.0  eV/(1012  W/cm2). We attribute the magnitude of the laser field effects to field enhancement taking place at the tip’s surface.

FAU Authors / FAU Editors

Hommelhoff, Peter Prof. Dr.
Lehrstuhl für Laserphysik
Krüger, Michael
Lehrstuhl für Laserphysik

External institutions with authors

Max-Planck-Institute of Quantum Optics (MPQ) / Max-Planck-Institut für Quantenoptik

How to cite

Schenk, M., Krüger, M., & Hommelhoff, P. (2010). Strong-Field Above-Threshold Photoemission from Sharp Metal Tips. Physical Review Letters, 105.

Schenk, Markus, Michael Krüger, and Peter Hommelhoff. "Strong-Field Above-Threshold Photoemission from Sharp Metal Tips." Physical Review Letters 105 (2010).


Last updated on 2018-26-10 at 12:10