Volume 12 Issue 3, March 2018

Volume 12 Issue 3

Ultrafast X-ray holography

X-ray diffraction pattern generated from two different-sized spherical objects in close proximity to each other. The curvature and modulation of the dark fringes in the pattern provide useful information related to the relative position of the two objects and can be interpreted for image reconstruction. The result is a scheme that can perform ultrafast X-ray imaging of nanoscale systems such as a virus.

See Gorkhover et al.

Image: Anatoli Ulmer, TU Berlin, Germany. Cover Design: Bethany Vukomanovic.

Editorial

  • Editorial |

    Scientific claims, particularly those related to devices, are often backed up by standardized characterization. In fields without accepted standards, is it beneficial to strive to establish them?

Comment

  • Comment |

    Nicolaas Bloembergen made rich contributions to nuclear magnetic resonance, masers and lasers, nonlinear optics and ultrafast laser–matter interactions. The Nobel laureate sadly passed away on 5 September 2017. Here are my memories of my Harvard mentor, a remarkable person and a wonderful scientist.

    • Jia-Ming Liu

Books & Arts

Research Highlights

News & Views

  • News & Views |

    Phosphors often suffer luminescence quenching at elevated temperatures. Now, thermal quenching can be combated with surface phonon-assisted energy transfer, enabling the luminescence of ultrasmall upconversion nanophosphors to be dramatically enhanced.

    • Liangliang Liang
    •  & Xiaogang Liu
  • News & Views |

    With the availability of high-intensity terahertz free-electron lasers, surprisingly large multiphoton absorptions in a phosphorus atom doped in a silicon crystal have been obtained, providing the possibility of a hydrogen-like system in silicon photonics and quantum information devices.

    • Nobuhiko Yokoshi
    •  & Hajime Ishihara
  • News & Views |

    Reflected light is often unwanted, causing interference, and reducing transmitted power. Controlling the non-local response of a material can lead to anti-reflection coatings with impressive properties.

    • Simon Horsley
  • News & Views |

    The observation of terahertz nonlinearities in graphene and quantum wells and the emission of terahertz waves from water show that terahertz science is still a fertile area of research that is full of surprises.

    • Noriaki Horiuchi

Review Articles

Letters

  • Letter |

    Femtosecond X-ray Fourier holography imaging with record-high lateral resolution below 20 nm is demonstrated. Phase information is encoded into the interference of the diffraction patterns of a reference particle with a measurement sample.

    • Tais Gorkhover
    • , Anatoli Ulmer
    • , Ken Ferguson
    • , Max Bucher
    • , Filipe R. N. C. Maia
    • , Johan Bielecki
    • , Tomas Ekeberg
    • , Max F. Hantke
    • , Benedikt J. Daurer
    • , Carl Nettelblad
    • , Jakob Andreasson
    • , Anton Barty
    • , Petr Bruza
    • , Sebastian Carron
    • , Dirk Hasse
    • , Jacek Krzywinski
    • , Daniel S. D. Larsson
    • , Andrew Morgan
    • , Kerstin Mühlig
    • , Maria Müller
    • , Kenta Okamoto
    • , Alberto Pietrini
    • , Daniela Rupp
    • , Mario Sauppe
    • , Gijs van der Schot
    • , Marvin Seibert
    • , Jonas A. Sellberg
    • , Martin Svenda
    • , Michelle Swiggers
    • , Nicusor Timneanu
    • , Daniel Westphal
    • , Garth Williams
    • , Alessandro Zani
    • , Henry N. Chapman
    • , Gyula Faigel
    • , Thomas Möller
    • , Janos Hajdu
    •  & Christoph Bostedt

Articles

  • Article |

    Green light-emitting diodes with a brightness of 460,000 cd m–2 and a low turn-on voltage of 2.5 V are enabled by the use of a chlorination treatment to provide conductive passivation of the devices.

    • Xiyan Li
    • , Yong-Biao Zhao
    • , Fengjia Fan
    • , Larissa Levina
    • , Min Liu
    • , Rafael Quintero-Bermudez
    • , Xiwen Gong
    • , Li Na Quan
    • , James Fan
    • , Zhenyu Yang
    • , Sjoerd Hoogland
    • , Oleksandr Voznyy
    • , Zheng-Hong Lu
    •  & Edward H. Sargent
  • Article |

    By combining the sensitivity and high temporal resolution of phase imaging with the specificity and high spatial resolution of fluorescence microscopy, a 4D microscope is demonstrated that visualizes in three dimensions the fast cellular processes in living cells at up to 200 Hz.

    • A. Descloux
    • , K. S. Grußmayer
    • , E. Bostan
    • , T. Lukes
    • , A. Bouwens
    • , A. Sharipov
    • , S. Geissbuehler
    • , A.-L. Mahul-Mellier
    • , H. A. Lashuel
    • , M. Leutenegger
    •  & T. Lasser
  • Article |

    An experimental protocol to discern true multi-particle interference is demonstrated in a boson sampling device without dynamic reconfiguration. Statistical features of three-photon interference were evaluated in a seven-mode integrated interferometer.

    • Taira Giordani
    • , Fulvio Flamini
    • , Matteo Pompili
    • , Niko Viggianiello
    • , Nicolò Spagnolo
    • , Andrea Crespi
    • , Roberto Osellame
    • , Nathan Wiebe
    • , Mattia Walschaers
    • , Andreas Buchleitner
    •  & Fabio Sciarrino
  • Article |

    By using a terahertz free-electron laser, multiphoton transitions between impurity states in p-doped Si are investigated. The two- and three-photon integrated absorption cross-sections are found to be the highest ever reported for a discrete oscillator system.

    • M. A. W. van Loon
    • , N. Stavrias
    • , Nguyen H. Le
    • , K. L. Litvinenko
    • , P. T. Greenland
    • , C. R. Pidgeon
    • , K. Saeedi
    • , B. Redlich
    • , G. Aeppli
    •  & B. N. Murdin

Amendments & Corrections