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Showing 1–14 of 14 results
Advanced filters: Author: Mauro Nisoli Clear advanced filters

  • Surface plasmons undergo ultrafast dynamics on the attosecond timescale. Probing these ultrabrief effects is notoriously difficult, but a new microscope could pave the way towards an understanding of these fields and, ultimately, control of them.

    • Mauro Nisoli
    News & Views
    Nature Photonics
    Volume: 1, P: 499-500

  • The first steps of charge transfer in molecules after their interaction with light occur on an ultrafast timescale. Now, by combining attosecond pump/few-femtosecond probe spectroscopy with quantum chemistry calculations, it has been shown that a concerted nuclear and electronic motion drives electron transfer in donor–π–acceptor molecules on a sub-10-fs timescale.

    • Federico Vismarra
    • Francisco Fernández-Villoria
    • Mauro Nisoli
    ResearchOpen Access
    Nature Chemistry
    Volume: 16, P: 2017-2024

  • Researchers report the generation of isolated sub-160-attosecond pulses that have photon energies of 30 eV, resulting in an on-target pulse energy of a few nanojoules. The availability of attosecond sources with high peak intensities may open new avenues for attosecond pump/probe studies of electronic processes in atomic and molecular physics.

    • F. Ferrari
    • F. Calegari
    • M. Nisoli
    Research
    Nature Photonics
    Volume: 4, P: 875-879

  • Attosecond transient reflection spectroscopy is used to experimentally observe the attosecond electron dynamics of a crystalline diamond, showing that virtual interband transitions affect the timing and adiabaticity of the crystal response and thus providing insights for the development of information processing and petahertz electronics.

    • Gian Luca Dolso
    • Shunsuke A. Sato
    • Matteo Lucchini
    Research
    Nature Photonics
    Volume: 19, P: 999-1005

  • Attosecond transient reflectivity spectroscopy, in combination with extensive time-dependent density functional theory calculations, is used to study field-driven carrier injection in germanium in the time window of few femtoseconds around pulse overlap, paving a route towards achieving full optical control over charge carriers in semiconductors.

    • Giacomo Inzani
    • Lyudmyla Adamska
    • Matteo Lucchini
    Research
    Nature Photonics
    Volume: 17, P: 1059-1065

  • Floquet engineering aims at inducing new properties in materials with light. Here the authors have used pulses of variable durations, to investigate its applicability in the femtosecond domain. Surprisingly, they found that it holds to the few-cycle limit.

    • Matteo Lucchini
    • Fabio Medeghini
    • Mauro Nisoli
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-7

  • The capability to follow electron motion in solids is necessary to explore the ultimate speed limits of optical charge manipulation and signal processing in optoelectronic devices. Here, the authors reveal the sub-femtosecond dynamics of core excitons in MgF2 and find the dual atomic-solid nature of the exciton quasi-particle to deeply affect its ultrafast dynamics.

    • Matteo Lucchini
    • Shunsuke A. Sato
    • Mauro Nisoli
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • Diffraction imaging studies of free individual nanoparticles have so far been restricted to XUV and X-ray free - electron laser facilities. Here the authors demonstrate the possibility of using table-top XUV laser sources to image prolate shapes of superfluid helium droplets.

    • Daniela Rupp
    • Nils Monserud
    • Arnaud Rouzée
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-7

  • Sudden ionisation of larger molecules can initiate a correlation-driven process called charge migration, but due to its short time scale this process is challenging to observe. Here, the authors ionise adenine with extreme ultraviolet light and observe electron correlation in the molecule at the attosecond scale in real-time.

    • Erik P. Månsson
    • Simone Latini
    • Francesca Calegari
    ResearchOpen Access
    Communications Chemistry
    Volume: 4, P: 1-7