Ultrafast photonics

Ultrafast photonics is the study of light and its interaction with matter on short timescales, typically less than a picosecond. This includes investigating processes that occur in atoms and molecules, such as the dynamics and correlations between electrons during ionization, and often employs ultrafast lasers or mode-locked lasers.

Latest Research and Reviews

News and Comment

  • News and Views |

    Launching electrons to the centre of an optical field with a vortex phase profile via extreme-ultraviolet photoionization makes coherent imprinting of the spatial distribution of the vortex beam onto the electron wave packet possible.

    • Olga Smirnova
    Nature Photonics 14, 527-528
  • Research Highlights |

    Two papers in Nature report strong coupling between photons and free, unbound electrons. This opens up the possibility for higher resolution, ultrafast imaging using lower energy and less-destructive electron beams.

    • Ankita Anirban
  • News and Views |

    Technology borrowed from electron accelerator and beam physics looks set to push the performance of ultrafast-electron-diffraction-based pump–probe studies of matter.

    • Pietro Musumeci
    Nature Photonics 14, 199-200
  • News and Views |

    Speed is of the essence when it comes to signal processing, but electronic switching times have reached a limit. Optically controlled tunnel currents across a nanoscale plasmonic gap could considerably accelerate future nanoelectronic devices.

    • Olga Smirnova
    Nature Physics 16, 241-242
  • News and Views |

    Coherent ultrafast spectroscopy of nanofocused plasmonic pulses strengthens the nonlinear response in graphene, highlighting the origin of a new general phenomenon.

    • Andrea Giugni
    Nature Nanotechnology 14, 814-815