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Showing 1–5 of 5 results
Advanced filters: Author: "Nicholas Karpowicz" Clear advanced filters

  • A continuum spanning from 300 and 3000 nm is used to synthesize a single-cycle field transient and measure its waveform through electro-optic sampling, speeding up this sensitive technique so that it can access the electric field of visible light.

    • Enrico Ridente
    • Mikhail Mamaikin
    • Nicholas Karpowicz
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-7

  • Petahertz-scale optical-field metrology in a pump-probe setting enables the direct observation of how the optical properties of a medium evolve after 1-fs-scale photoinjection.

    • Dmitry A. Zimin
    • Nicholas Karpowicz
    • Vladislav S. Yakovlev
    ResearchOpen Access
    Nature
    Volume: 618, P: 276-280

  • Direct measurement of the electric field of light in the near-infrared is experimentally demonstrated, showing that careful optical filtering allows the time-resolved detection of electric field oscillations with half-cycle durations as short as 2.1 fs, even with a 5 fs sampling pulse.

    • Sabine Keiber
    • Shawn Sederberg
    • Nicholas Karpowicz
    Research
    Nature Photonics
    Volume: 10, P: 159-162

  • Characterization of light pulses is important in order to understand their interaction with matter. Here the authors demonstrate a nonlinear photoconductive sampling method to measure electric field wave-forms in the infrared, visible and ultraviolet spectral ranges.

    • Shawn Sederberg
    • Dmitry Zimin
    • Nicholas Karpowicz
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-8

  • Tunnelling currents inside plasmonic nanostructures are fast enough to gain direct access to the oscillating electric field of near-infrared and visible light, opening up exciting routes towards attosecond metrology of light–matter interaction and unique approaches to spectroscopy.

    • Nicholas Karpowicz
    News & Views
    Nature Photonics
    Volume: 15, P: 408-410