Electron rescattering at metal nanotips induced by ultrashort laser pulses

Wachter G, Lemell C, Burgdoerfer J, Schenk M, Krüger M, Hommelhoff P (2012)

Publication Type: Journal article

Publication year: 2012

Journal

Physical Review B American Physical Society

Publisher: American Physical Society

Book Volume: 86

Pages Range: 035402

URI: http://prb.aps.org/abstract/PRB/v86/i3/e035402

DOI: 10.1103/PhysRevB.86.035402

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.

Authors with CRIS profile

Michael Krüger Lehrstuhl für Laserphysik Peter Hommelhoff Lehrstuhl für Laserphysik

Involved external institutions

Technische Universität Wien / Vienna University of Technology AT Austria (AT) Max-Planck-Institute of Quantum Optics (MPQ) / Max-Planck-Institut für Quantenoptik DE Germany (DE)

How to cite

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://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.

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