Materials for optics articles within Nature Materials

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  • News & Views |

    Highly efficient matrix-free hyperfluorescent organic light-emitting diodes are constructed with remarkably supressed Dexter transfer utilizing narrowband blue emitters encapsulated with hopped alkyl chains.

    • Yuewei Zhang
    •  & Lian Duan

  • Article |

    Lack of local phase patterning in liquid crystal elastomers has hindered their broad implementation. The authors report a laser-induced dynamic crosslinking approach with allyl sulfide groups to achieve reconfigurable high-resolution patterning of multiple liquid crystalline phases in a single film.

    • Seok Hwan Choi
    • , Ju Hee Kim
    •  & Seung Hwan Ko

  • Article
    | Open Access

    Suppressed Dexter transfer is needed to achieve efficient and stable hyperfluorescence, but complex matrices must be involved. A molecular design strategy has been proposed where Dexter transfer can be substantially reduced by an encapsulated terminal emitter, leading to ‘matrix-free’ hyperfluorescence.

    • Hwan-Hee Cho
    • , Daniel G. Congrave
    •  & Hugo Bronstein

  • Article
    | Open Access

    Current organic proton detectors have poor detection sensitivities due to low light yields and limited radiation toleration. Here the authors report a perovskite nanocrystal-based transmissive thin scintillator that can detect seven protons per second, enabled by radiative emission from biexcitons.

    • Zhaohong Mi
    • , Hongyu Bian
    •  & Xiaogang Liu

  • Article
    | Open Access

    Optically stimulated vibrational control for materials has the potential to improve the performance of optoelectronic devices. The vibrational control of FAPbBr3 perovskite solar cells has been demonstrated, where the fast dynamics of coupling between cations and inorganic sublattice may suppress non-radiative recombinations in perovskites, leading to reduced voltage losses.

    • Nathaniel. P. Gallop
    • , Dmitry R. Maslennikov
    •  & Artem A. Bakulin

  • News & Views |

    Chiral single-photon emitters are desirable, versatile tools for quantum information processing. Exploiting proximity to a strain-induced local magnetic field in the van der Waals antiferromagnet NiPS3 enables the emission of high-purity chiral single photons from monolayer WSe2 at zero external magnetic field.

    • Jing Tang
    •  & Xi Ling

  • Research Briefing |

    High-quality aluminium nitride (AlN) heteroepitaxial films are obtained by the controlled discretization and coalescence of columns using nanopatterned AlN/sapphire templates with regular hexagonal holes. The density of dislocation etch pits in the AlN heteroepitaxial films is reduced to approximately 104 cm–2, approaching the value of that in AlN bulk single crystals.

  • News & Views |

    Controlling the twist angles between three α-phase molybdenum trioxide single layers enables the programmable and reconfigurable canalization of phonon polaritons along multiple in-plane directions.

    • Siyuan Dai
    •  & Qiong Ma

  • Article |

    High-quality AlN heteroepitaxial films are obtained by controllable discretization and coalescence of columns on nano-patterned AlN/sapphire templates with hexagonal holes, where the density of dislocation etch pits is greatly reduced to ~10 × 104 cm−2.

    • Jiaming Wang
    • , Nan Xie
    •  & Bo Shen

  • Letter |

    Using direct laser writing with a nanosecond pulsed laser operating at above-bandgap photon energies, we demonstrate the selective formation of spin defects in photonic crystal cavities in 4H-silicon carbide and their in situ characterization.

    • Aaron M. Day
    • , Jonathan R. Dietz
    •  & Evelyn L. Hu

  • Letter |

    We report compact spin-valley-locked perovskite emitting metasurfaces where spin-dependent geometric phases are imparted into bound states in the continuum via Brillouin zone folding, simultaneously enabling chiral purity, directionality and large emission angles.

    • Yang Chen
    • , Jiangang Feng
    •  & Cheng-Wei Qiu

  • Letter |

    We report the observation of narrowband terahertz emission from a quasi-one-dimensional charge-density-wave insulator, (TaSe4)2I. The origin of the emitted radiation is interpreted as a phason that obtains mass due to the long-range Coulomb interaction.

    • Soyeun Kim
    • , Yinchuan Lv
    •  & Fahad Mahmood

  • News & Views |

    By exploiting optical phase-modulation at complex surface plasmon polariton patterns, as well as energy-filtered imaging, femtosecond electron pulses are dynamically shaped in phase and amplitude.

    • Armin Feist

  • Article |

    Liquid crystal (LC) applications typically rely on defining the non-topological spatial patterns of the optical axis. Here, the authors demonstrate the topological steering of light by LC nematic vortices, futher establishing an analogy between topological light steering by LC vortices and cosmic strings.

    • Cuiling Meng
    • , Jin-Sheng Wu
    •  & Ivan I. Smalyukh

  • News & Views |

    Periodic nanostructures create brilliant colours, termed structural colouration, through light scattering and refraction. Now, using a simple and scalable method, stress- and strain-induced dynamic colour shifts are realized in stretchable polymers.

    • Daeyeon Won
    •  & Seung Hwan Ko

  • News & Views |

    Structuring surfaces coated with nanoparticles in the subwavelength range allows almost complete control over the optical appearance of an object.

    • Frank Scheffold

  • Article |

    Unlike electron spins, nuclear spins in van der Waals materials remain a largely untapped quantum resource. Here we report the fast coherent control of nuclear spins and strong electron-mediated nuclear–nuclear spin coupling in hexagonal boron nitride.

    • Xingyu Gao
    • , Sumukh Vaidya
    •  & Tongcang Li

  • Letter |

    Desired for optical sensing or visual communications, structural colour-changing materials are hindered by the lack of scalable manufacturing. Here, by adapting Lippmann photography, large-area manufacturing of colour patterns in photosensitive elastomers is realized.

    • Benjamin Harvey Miller
    • , Helen Liu
    •  & Mathias Kolle

  • News & Views |

    Excitonic states with hybrid dimensionality in layered silicon diphosphide exhibit interesting features such as linearly dichroic photoluminescence and unusually strong exciton–phonon coupling.

    • Matthieu Fortin-Deschênes
    •  & Fengnian Xia

  • Article |

    The realization of large-scale exciton–polariton platforms operating at room temperature and exhibiting long-lived, strongly interacting excitons has been elusive. Here, the authors demonstrate a room-temperature perovskite-based polaritonic platform with a polariton lattice size of up to 10 × 10.

    • Renjie Tao
    • , Kai Peng
    •  & Wei Bao

  • News & Views |

    A temporal modulation protocol enriches topological Floquet physics by enabling the realization of bimorphic Floquet systems where Chern and anomalous Floquet phases coexist in a single platform of laser-written waveguides.

    • Alexander B. Khanikaev

  • Article |

    A multiscale modelling platform combining nanoscale resonant scattering, mesoscale multiple scattering and macroscale light transport effectively predicts the macroscopic visual effects created by optical metamaterials with disordered nanostructures.

    • Kevin Vynck
    • , Romain Pacanowski
    •  & Philippe Lalanne

  • Article |

    A strategy to confine phosphorescent organic chromophores within ionic crystals proves effective in suppressing non-radiative recombination channels and increasing the phosphorescence efficiency of blue-emitting heavy-atom-free emitters.

    • Wenpeng Ye
    • , Huili Ma
    •  & Wei Huang

  • News & Views |

    Clever 3D-printed acoustic materials allow probing a new higher-order semimetallic topological phase using audible sound.

    • R. Fleury

  • Article |

    A coherent condensate of exciton–polaritons, extending spatially up to 4 µm and spin-polarizable with an external magnetic field, is observed at cryogenic temperatures in a MoSe2 monolayer embedded in a vertical microcavity.

    • Carlos Anton-Solanas
    • , Maximilian Waldherr
    •  & Christian Schneider

  • Article |

    Stacked elastomeric arrays containing plasmonic nanoparticles show efficient chiral responses that can be fully controlled by mechanical compression and stack rotation. These simple layered materials may be useful modulators for photonic applications.

    • Patrick T. Probst
    • , Martin Mayer
    •  & Andreas Fery

  • News & Views |

    A light-induced topological phase transition is realized in the Dirac semimetal ZrTe5 by coherently driving symmetry-breaking phonons.

    • N. S. Sirica
    •  & R. P. Prasankumar

  • News & Views |

    Controlling nuclear spins coupled to an electron spin in silicon carbide has enabled development of a ‘quantum register’ interfaced with telecom photons, leading to the possibility of distant transport of quantum information.

    • Siddharth Dhomkar
    •  & John J. L. Morton

  • Letter |

    A carbazole isomer, typically present as an impurity in commercially produced carbazole batches, is shown to be responsible for the ultralong phosphorescence observed in these compounds and their derivatives.

    • Chengjian Chen
    • , Zhenguo Chi
    •  & Bin Liu

  • Article |

    Infrared nanoimaging of phonon polaritons in twisted α-phase molybdenum trioxide bilayers reveals tunable wavefront geometries and topological transitions over a broad range of twist angles, offering a configurable platform for nanophotonic applications.

    • Mingyuan Chen
    • , Xiao Lin
    •  & Siyuan Dai

  • Letter |

    The integration of barium titanate thin films with silicon-based waveguides enables the operation of efficient electro-optic switches and modulators at temperatures as low as 4 K, with potential applications in quantum computing and cryogenic computing technologies.

    • Felix Eltes
    • , Gerardo E. Villarreal-Garcia
    •  & Stefan Abel

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