Observation of few-cycle, strong-field phenomena in surface plasmon fields

P. Dombi, S. E. Irvine, P. Rácz, M. Lenner, N. Kroó, G. Farkas, A. Mitrofanov, A. Baltuška, T. Fuji, F. Krausz, A. Y. Elezzabi

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Abstract

We present experimental evidence of the generation of few-cycle propagating surface plasmon polariton wavepackets. These ultrashort plasmonic pulses comprised of only 2-3 field oscillations were characterized by an autocorrelation measurement based on electron photoemission. By exploiting plasmonic field enhancement, we achieved plasmon-induced tunnelling emission from the metal surface at low laser intensity, opening perspectives for strong-field experiments with low pulse energies. All-optical electron acceleration up to keV kinetic energy is also demonstrated in these surface-confined, few-cycle fields with only 1.35 × 1012 W/cm2 focused laser intensity. The experimental results are found to be in excellent agreement with the model.

Original languageEnglish
Pages (from-to)24206-24212
Number of pages7
JournalOptics Express
Volume18
Issue number23
DOIs
Publication statusPublished - Nov 8 2010

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Dombi, P., Irvine, S. E., Rácz, P., Lenner, M., Kroó, N., Farkas, G., Mitrofanov, A., Baltuška, A., Fuji, T., Krausz, F., & Elezzabi, A. Y. (2010). Observation of few-cycle, strong-field phenomena in surface plasmon fields. Optics Express, 18(23), 24206-24212. https://doi.org/10.1364/OE.18.024206