Attosecond science articles within Nature Physics

Featured

  • Article |

    Attosecond circular-dichroism chronoscopy—a spectroscopy technique that employs two circularly polarized pulses in co-rotating and counter-rotating geometries—can measure the amplitudes and phases of continuum–continuum transitions in electron vortices.

    • Meng Han
    • , Jia-Bao Ji
    •  & Hans Jakob Wörner

  • Research Briefing |

    Attosecond charge migration in a neutral molecule has been observed to decohere within approximately 10 fs. However, this does not mean that the electronic coherence is irreversibly lost, as the charge migration is observed to revive after 40–50 fs. These findings have the potential to enable laser control of photochemical processes.

  • Article |

    Whether or not an electron wavepacket accumulates a time delay when tunnelling out of an atom is still under debate. Improved all-optical characterization of the tunnelling dynamics by combining one- and two-colour driving fields may shed light on this question.

    • Ihar Babushkin
    • , Álvaro Jiménez Galán
    •  & Misha Ivanov

  • Article |

    Self-referenced attosecond streaking enables in situ measurements of Auger emission in atomic neon excited by femtosecond pulses from an X-ray free-electron laser with subfemtosecond time resolution and despite the jitter inherent to X-ray free-electron lasers.

    • D. C. Haynes
    • , M. Wurzer
    •  & A. L. Cavalieri

  • Article |

    Ionization delays from ethyl iodide around a giant dipole resonance are measured by attosecond streaking spectroscopy. Using theoretical knowledge of the iodine atom as a reference, the contribution of the functional ethyl group can be obtained.

    • Shubhadeep Biswas
    • , Benjamin Förg
    •  & Matthias F. Kling

  • Letter |

    In different applications the Gouy phase is used to describe broadband lasers, but new 3D measurements of the spatial dependence of a focused laser pulse show serious deviations from the Gouy phase.

    • Dominik Hoff
    • , Michael Krüger
    •  & Peter Hommelhoff

  • News & Views |

    Without a very precise timer one can never catch up with the electron released in photoemission. Attosecond streaking spectroscopy allows such a chronometer clock to be set to zero and reveals the role of electron correlations.

    • Francesca Calegari

  • Letter |

    High-harmonic generation in a solid turns out to be sensitive to the interatomic bonding — a very useful feature that could enable the all-optical imaging of the interatomic potential.

    • Yong Sing You
    • , David A. Reis
    •  & Shambhu Ghimire

  • Article |

    Photoemission is not a simple process and it is not instantaneous. Delays of a few attoseconds have now been measured in helium and it seems that they are partly due to electronic correlations.

    • M. Ossiander
    • , F. Siegrist
    •  & M. Schultze

  • News & Views |

    A movie of ultrafast electron dynamics driven by lightwaves shows that wide-bandgap semiconductors could form the building blocks of petahertz electronic devices.

    • Oliver D. Mücke

  • Letter |

    Experiments showing that electron dynamics can be controlled on attosecond timescales suggest that wide-bandgap semiconductors could be exploited for petahertz signal processing technologies.

    • Hiroki Mashiko
    • , Katsuya Oguri
    •  & Hideki Gotoh

  • Letter |

    An interferometric measurement based on high-harmonic generation now provides direct access to the electron wavefunction during field-induced tunnelling.

    • O. Pedatzur
    • , G. Orenstein
    •  & N. Dudovich

  • Article |

    Understanding the physical mechanisms of photon–atom interactions on ultrafast timescales is challenging, but a new theoretical framework enables the interpretation of attoclock experiments measuring tunnelling times in hydrogen.

    • Lisa Torlina
    • , Felipe Morales
    •  & Olga Smirnova

  • News & Views |

    The ionization of atoms and molecules by strong laser fields has become a core technique in modern laser physics. Now, the electrons emerging from ionized molecules are shown to exhibit a memory of the ionization process, resulting in a spatial phase that may influence the interpretation of imaging data.

    • Jochen Küpper

  • Letter |

    To better understand the mechanisms of double ionization following the absorption of one photon, a combination of experimental techniques has been developed to probe the electron emission times in xenon on the attosecond timescale.

    • Erik P. Månsson
    • , Diego Guénot
    •  & Mathieu Gisselbrecht

  • News & Views |

    Optical vortices usually break up when they propagate through nonlinear media. Now, however, experiments show the helical structure of an infrared beam can survive a high-harmonic-generation process. This could lead to a table-top source of attosecond helical light pulses.

    • Serguei Patchkovskii
    •  & Michael Spanner

  • Letter |

    Optical vortices exhibit a corkscrew-like shape as they travel. The study of this phenomenon, known as singular optics, is now extended to the high-power regime where high-harmonic processes become evident. This type of radiation could help illuminate novel attosecond phenomena in atoms and molecules.

    • M. Zürch
    • , C. Kern
    •  & Ch. Spielmann

  • Article |

    A demonstration of the ability to coherently control the collective attosecond dynamics of relativistic electrons driven through a plasma by an intense laser represents an important step in the development of techniques to manipulate and study extreme states of matter.

    • Antonin Borot
    • , Arnaud Malvache
    •  & Rodrigo Lopez-Martens

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