Interaction of ultrashort laser pulses with metal nanotips: a model system for strong-field phenomena

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

Publication Type: Journal article

Publication year: 2012

Journal

New Journal of Physics Institute of Physics: Open Access Journals / Institute of Physics (IoP) and Deutsche Physikalische Gesellschaft

Publisher: Institute of Physics: Open Access Journals / Institute of Physics (IoP) and Deutsche Physikalische Gesellschaft

Book Volume: 14

Pages Range: 085019

URI: http://iopscience.iop.org/1367-2630/14/8/085019

DOI: 10.1088/1367-2630/14/8/085019

Abstract

We discuss the interaction of ultrashort near-infrared laser pulses with sharp metal tips at moderate nominal intensities (I 0 ∼ 10 ¹¹W cm ^-2). As external electric fields are strongly enhanced at such tips (enhancement factor ∼10) our system turns out to be an ideal miniature laboratory to investigate strong-field effects at solid surfaces. We analyse the electron-energy spectra as a function of the strength of the laser field and the static extraction field and present an intuitive model for their interpretation. The size of the effective field acting on the metal electrons can be determined from the electron spectra. The latter are also reproduced by time-dependent density functional theory (TDDFT) simulations. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.

Authors with CRIS profile

Michael Krüger Lehrstuhl für Laserphysik Peter Hommelhoff Lehrstuhl für Laserphysik

Involved external institutions

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

Germany (DE) Technische Universität Wien / Vienna University of Technology

Austria (AT)

How to cite

APA:

Krüger, M., Schenk, M., Hommelhoff, P., Wachter, G., Lemell, C., & Burgdoerfer, J. (2012). Interaction of ultrashort laser pulses with metal nanotips: a model system for strong-field phenomena. New Journal of Physics, 14, 085019. https://dx.doi.org/10.1088/1367-2630/14/8/085019

MLA:

Krüger, Michael, et al. "Interaction of ultrashort laser pulses with metal nanotips: a model system for strong-field phenomena." New Journal of Physics 14 (2012): 085019.

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