Physics articles within Nature Photonics

Featured

  • News & Views |

    A record-breaking microwave-to-optics conversion efficiency of 82% over a 1 MHz bandwidth for low photon numbers is achieved by using a gas of Rydberg atoms, paving the way towards applications in quantum technologies.

    • Jacob P. Covey
  • Article |

    Superfluorescence—the collective emission of fluorescent light—is observed at temperatures up to 330 K in lead halide perovskite thin films. This finding suggests an intrinsic mechanism for protecting the electronic coherence in these materials.

    • Melike Biliroglu
    • , Gamze Findik
    •  & Kenan Gundogdu
  • News & Views |

    Harnessing birefringence in a photonic chip featuring an array of coupled waveguides brings new opportunities for investigating quantum effects such as bunching and antibunching.

    • Hao Tang
    •  & Xian-Min Jin
  • Review Article |

    Recent progress of table-top isolated attosecond light sources is reviewed with a focus on the related technologies for high-average-flux and high-peak-intensity attosecond bursts of light. An outlook on its applications is also provided.

    • Katsumi Midorikawa
  • Article |

    Attosecond-gated interferometry is developed by combining sub-cycle temporal gating and extreme-ultraviolet interferometry. By measuring the electron’s relative phase and amplitude under a tunnelling barrier, the quantum nature of the electronic wavepacket is identified.

    • Omer Kneller
    • , Doron Azoury
    •  & Nirit Dudovich
  • Article |

    A photonic anomalous Floquet insulator is emulated in a silicon photonic chip. Up to four-photon topologically protected entangled states are generated in a monolithically integrated emitter in ambient conditions through four-wave mixing on top of the edge modes of the insulator.

    • Tianxiang Dai
    • , Yutian Ao
    •  & Jianwei Wang
  • Article |

    Researchers exploit Rayleigh waves and associated dynamic strains to control exciton transport in the weak coupling regime at room temperature. The findings may pave the way for new types of excitonic device for applications ranging from communications to energy.

    • Kanak Datta
    • , Zhengyang Lyu
    •  & Parag B. Deotare
  • News & Views |

    An off-the-shelf silicon image sensor can directly record few-cycle optical waveforms in the mid-infrared in a single shot by employing tunnelling ionization as a temporal gate.

    • Mostafa Shalaby
  • Article |

    Twin-field (TF) quantum key distribution (QKD) over a secure distance of 833.8 km is demonstrated even in the finite-size regime. To this end, an optimized four-phase TF-QKD protocol and a high-speed low-noise TF-QKD system are developed.

    • Shuang Wang
    • , Zhen-Qiang Yin
    •  & Zheng-Fu Han
  • Article |

    Third-harmonic Mie scattering optical activity from suspensions of semiconductor (CdTe) nanostructured helices is observed, opening ways for chiroptical characterization of semiconductor and other chiral non-metallic particles in volumes potentially of the order of 10–17 m3.

    • Lukas Ohnoutek
    • , Ji-Young Kim
    •  & Ventsislav K. Valev
  • News & Views |

    A sub-cycle modulation in reflectivity is observed in bulk crystals subjected to intense laser fields. The effect provides a new way to probe attosecond dynamics in materials.

    • Shambhu Ghimire
  • Article
    | Open Access

    By combining scanning tunnelling microscopy and attosecond technologies, the coherent electronic motion generated in molecules by carrier-envelope-phase-stable laser pulses is visualized at ångström-scale spatial resolution and subfemtosecond temporal resolution.

    • M. Garg
    • , A. Martin-Jimenez
    •  & K. Kern
  • Article |

    Light-field-induced electron dynamics in a silicon dioxide dielectric system are exploited to directly measure the attosecond relative electronic delay response in the dielectric system, potentially extending the speed of data processing and information encoding into the petahertz realm.

    • Dandan Hui
    • , Husain Alqattan
    •  & Mohammed Th. Hassan
  • Article |

    Researchers demonstrate a microring cavity with a photonic crystal on its inside edge, which enables a simultaneous high quality factor (1,000,000) and slow light (10 times slower than for conventional whispering gallery modes). Defect modes with a high quality factor (600,000) and high localizations (20 times smaller) are also enabled.

    • Xiyuan Lu
    • , Andrew McClung
    •  & Kartik Srinivasan
  • Article |

    Absorption lineshape of H2 is coherently controlled by using intense near-infrared laser pulses. Depending on the time delay between the near-infrared and extreme ultraviolet pulses, the profiles display a Lorentzian or an asymmetric Fano lineshape.

    • Peng Peng
    • , Yonghao Mi
    •  & D. M. Villeneuve
  • Letter
    | Open Access

    Dual-comb digital holography based on an interferometer composed of two frequency combs of slightly different repetition frequencies and a lensless camera sensor allows highly frequency-multiplexed holography with high temporal coherence.

    • Edoardo Vicentini
    • , Zhenhai Wang
    •  & Nathalie Picqué
  • Article
    | Open Access

    By sandwiching a germanium fin between complementary in situ-doped silicon layers, a waveguide-coupled germanium photodiode with a 3-dB bandwidth of 265 GHz, accompanied by high responsivity and low dark current, is realized.

    • S. Lischke
    • , A. Peczek
    •  & L. Zimmermann
  • News & Views |

    Quantum teleportation is demonstrated between light and the vibrations of a nanomechanical resonator, realizing a key capability for quantum computing.

    • Glen I. Harris
    •  & Warwick P. Bowen
  • Article |

    Quantum photonic integrated circuits for a standalone quantum secure communication system are developed and packaged into pluggable interconnects. The system is interfaced with 100 Gb s1 data encryptors and its performance is evaluated over 10 km to 50 km fibre links.

    • Taofiq K. Paraïso
    • , Thomas Roger
    •  & Andrew J. Shields
  • Letter |

    Quantum teleportation of a photonic qubit into mechanical modes of two silicon photonic crystal nanobeams is demonstrated. It allows to store and retrieve an arbitrary qubit state onto a dual-rail encoded long-lived optomechanical quantum memory.

    • Niccolò Fiaschi
    • , Bas Hensen
    •  & Simon Gröblacher
  • News & Views |

    A simple yet effective optical set-up, employing two controllable, indistinguishable photons, is proven to allow a direct measurement of the exchange phase due to the bosonic particle statistics.

    • Rosario Lo Franco
  • News & Views |

    Photon propagation through an array of coupled waveguides arranged in various fractal patterns serves as a useful ‘optical simulator’ for revealing insights into quantum transport in complex scenarios.

    • Tamás Kiss
    •  & Igor Jex
  • Article |

    Extreme electromagnetic field confinement in polaritonic systems is demonstrated. The tight fields can excite magnetoplasmons and result in nonlocal phenomena.

    • Shima Rajabali
    • , Erika Cortese
    •  & Giacomo Scalari
  • Review Article |

    Nearly 100 years after the prediction of Brillouin light-scattering spectroscopy, or Brillouin–Mandelstam light-scattering spectroscopy, the effect has proved itself a powerful tool for decades. Now its application to probing confined acoustic phonons, phononic metamaterials and magnons is reviewed.

    • Fariborz Kargar
    •  & Alexander A. Balandin
  • Article |

    Quantum transport in fractal networks is experimentally investigated by performing continuous-time quantum walks in fractal photonic lattices. Contrarily to classical fractals, anomalous transport governed solely by the fractal dimension is observed.

    • Xiao-Yun Xu
    • , Xiao-Wei Wang
    •  & Xian-Min Jin
  • News & Views |

    A ‘twin-field’ repeater-less protocol has enabled an experimental demonstration of secure quantum key distribution over a 511-km long-haul optical fibre link.

    • Charles C.-W. Lim
    •  & Chao Wang
  • Letter |

    A collective coherent quantum many-body phase, namely superfluorescence, is observed in CH3NH3PbI3 at 78 K. The excitation fluence dependence of the spectroscopic features and the population kinetics confirm all its well-known characteristics.

    • Gamze Findik
    • , Melike Biliroglu
    •  & Kenan Gundogdu
  • News & Views |

    The unique optical properties of graphene were combined with lithium-ion battery technology to produce multispectral optical devices, with colour-changing capabilities.

    • Andrea C. Ferrari
  • Article |

    Twin-field quantum key distribution over 600 km is demonstrated. The key ingredient for success is the dual-band phase stabilization that dramatically reduce the phase fluctuations on optical fibre by more than four orders of magnitude.

    • Mirko Pittaluga
    • , Mariella Minder
    •  & Andrew J. Shields
  • Letter |

    An interferometric technique is developed to measure the particle exchange phase of indistinguishable photons. The exchange phase obtained is (−0.04 ± 0.07) radians, which clearly demonstrates the symmetric nature of the two-photon wave functions.

    • Konrad Tschernig
    • , Chris Müller
    •  & Armando Perez-Leija