Volume 13 Issue 4, April 2019

Volume 13 Issue 4

High-density holography

Example of a high-quality hologram generated by a spatial light modulator approach that eliminates crosstalk between different depth planes by using pre-shaped wavefronts with random phase. The result is large-volume, high-density, 3D projections containing up to 1,000 simultaneous image planes.

See Ilday et al.

Image: Ella Maru Studio. Cover Design: Bethany Vukomanovic.

Comment

  • Comment |

    Victor Georgievich Veselago (1929–2018), a Russian scientist from the Lebedev Physical Institute in Moscow, provided great inspiration and impetus to the field of metamaterials with his theoretical analysis of materials with a negative index of refraction.

    • Nikolay I. Zheludev

    Collection:

Books & Arts

Research Highlights

News & Views

  • News & Views |

    The observation of a room-temperature stable liquid phase of electrons and holes in a quasi-two-dimensional photocell paves the way towards optoelectronic devices that harness collective phenomena.

    • Stéphane Berciaud
  • News & Views |

    By tailoring the anisotropy of light scattering along the surface of a macroscopic flat object, mechanical stabilization can be achieved without focused incident light or excessive constraints on the shape, size or material composition of the object.

    • Romain Quidant
  • News & Views |

    A type of near-field curved light field generated right at the output of a dielectric cuboid is experimentally observed. It is expected to have interesting applications in imaging and manipulation.

    • Kishan Dholakia
    •  & Graham D. Bruce
  • News & Views |

    The cost of infrared detectors has limited the deployment of multispectral imagers and sensors. Researchers now demonstrate simple quantum-dot devices that promise fast, sensitive and low-cost cameras that can switch between short- and mid-wavelength infrared.

    • David J. Norris

Review Articles

  • Review Article |

    This Review covers recent progress in AlGaN-based deep-ultraviolet light-emitting devices. The key technologies of how to improve their performance, carrier-injection efficiency, light extraction efficiency and heat dissipation are discussed.

    • Michael Kneissl
    • , Tae-Yeon Seong
    • , Jung Han
    •  & Hiroshi Amano

Letters

Articles

  • Article |

    A laser-based scheme for the simultaneous generation of two temporally synchronized electron beams with individually adjustable energies offers new opportunities for ultrafast pump–probe experiments.

    • J. Wenz
    • , A. Döpp
    • , K. Khrennikov
    • , S. Schindler
    • , M. F. Gilljohann
    • , H. Ding
    • , J. Götzfried
    • , A. Buck
    • , J. Xu
    • , M. Heigoldt
    • , W. Helml
    • , L. Veisz
    •  & S. Karsch
  • Article |

    Based on optically breaking time-reversal symmetry by spin polarizing a gain medium with a circularly polarized optical pump, an integrated scheme for controlling the chirality of orbital angular momentum lasing is demonstrated.

    • N. Carlon Zambon
    • , P. St-Jean
    • , M. Milićević
    • , A. Lemaître
    • , A. Harouri
    • , L. Le Gratiet
    • , O. Bleu
    • , D. D. Solnyshkov
    • , G. Malpuech
    • , I. Sagnes
    • , S. Ravets
    • , A. Amo
    •  & J. Bloch
  • Article |

    Mechanical stability of macroscopic structures on the millimetre-, centimetre- and even metre-scale could be realized by tailoring the anisotropy of light scattering along the object’s surface, without needing to focus incident light or excessively constrain the shape, size or material composition of the object.

    • Ognjen Ilic
    •  & Harry A. Atwater