Electron rescattering at metal nanotips induced by ultrashort laser pulses

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Wachter G, Lemell C, Burgdoerfer J, Schenk M, Krüger M, Hommelhoff P
Zeitschrift: Physical Review B
Verlag: American Physical Society
Jahr der Veröffentlichung: 2012
Band: 86
Seitenbereich: 035402
ISSN: 1098-0121


Abstract


We investigate plateau and cutoff structures in photoelectron spectra from nanoscale metal tips interacting with few-cycle near-infrared laser pulses. These hallmarks of electron rescattering, well-known from atom-laser interaction in the strong-field regime, appear at remarkably low laser intensities with nominal Keldysh parameters of the order of ≳10. Quantum and quasiclassical simulations reveal that a large field enhancement near the tip and the increased backscattering probability at a solid-state target play a key role. Plateau electrons are by an order of magnitude more abundant than in comparable atomic spectra, reflecting the high density of target atoms at the surface. The position of the cutoff serves as an in situ probe for the locally enhanced electric field at the tip apex. © 2012 American Physical Society.



FAU-Autoren / FAU-Herausgeber

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


Autor(en) der externen Einrichtung(en)
Max-Planck-Institute of Quantum Optics (MPQ) / Max-Planck-Institut für Quantenoptik
Vienna University of Technology


Zitierweisen

APA:
Wachter, G., Lemell, C., Burgdoerfer, J., Schenk, M., Krüger, M., & Hommelhoff, P. (2012). Electron rescattering at metal nanotips induced by ultrashort laser pulses. Physical Review B, 86, 035402. https://dx.doi.org/10.1103/PhysRevB.86.035402

MLA:
Wachter, Georg, et al. "Electron rescattering at metal nanotips induced by ultrashort laser pulses." Physical Review B 86 (2012): 035402.

BibTeX: 

Zuletzt aktualisiert 2018-09-08 um 20:38