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Showing 1–4 of 4 results
Advanced filters: Author: Felix Ritzkowsky Clear advanced filters

  • Characterisation of optical frequency electric fields and its integration within ultrafast currents in nanostructures is a crucial step for the development of petahertz electronics devices. Here the authors demonstrate singleshot measurement of the phase of a laser pulse with on-chip arrays of hundreds of metallic nanoantennas.

    • Felix Ritzkowsky
    • Matthew Yeung
    • Franz X. Kärtner
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8

  • An on-chip, sub-optical-cycle sampling technique for measuring arbitrary electric fields of few-femtojoule near-infrared optical pulses in ambient conditions is demonstrated, offering an improvement of roughly six orders of magnitude in energy sensitivity compared with those previous works in the near-infrared.

    • Mina R. Bionta
    • Felix Ritzkowsky
    • Phillip D. Keathley
    Research
    Nature Photonics
    Volume: 15, P: 456-460

  • Single-cycle interferometric autocorrelation measurements of electrons tunnelling across the gap of a plasmonic bowtie antenna and quantitative models provide insight into the physical interactions that drive the electron transfer.

    • Markus Ludwig
    • Garikoitz Aguirregabiria
    • Daniele Brida
    Research
    Nature Physics
    Volume: 16, P: 341-345