Optical techniques articles within Nature

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  • Article |

    Through inelastic light scattering chiral spin-2 long-wavelength magnetorotons are observed, revealing chiral graviton modes in fractional quantum Hall states and aiding in understanding the quantum metric impacts in topological correlated systems.

    • Jiehui Liang
    • , Ziyu Liu
    •  & Aron Pinczuk

  • Article
    | Open Access

    We demonstrate a photon-counting approach that extends the unique advantages of spectroscopy with interfering frequency combs into regions where nonlinear frequency conversion tends to be very inefficient, providing a step towards precision broadband spectroscopy at short wavelengths and extreme-ultraviolet dual-comb spectroscopy.

    • Bingxin Xu
    • , Zaijun Chen
    •  & Nathalie Picqué

  • Article
    | Open Access

    A programmable quantum processor based on encoded logical qubits operating with up to 280 physical qubits is described, in which improvement of algorithmic performance using a variety of error-correction codes is enabled.

    • Dolev Bluvstein
    • , Simon J. Evered
    •  & Mikhail D. Lukin

  • Article |

    The development of a 400,000-pixel superconducting nanowire single-photon detector array is described, improving the current state of the art by a factor of 400 and showing scalability well beyond the present demonstration.

    • B. G. Oripov
    • , D. S. Rampini
    •  & A. N. McCaughan

  • Article |

    Three-dimensional imaging using a frequency–angular resolving and frequency-modulated continuous-wave LiDAR enabled by a chip-scale acousto-optic beam-steering device has been demonstrated, with the simplicity and low cost of the device making this a promising technology.

    • Bingzhao Li
    • , Qixuan Lin
    •  & Mo Li

  • Article |

    The authors report on the radiative decay of a low-energy isomer in thorium-229 (229mTh), which has consequences for the design of a future nuclear clock and eases the search for direct laser excitation of the atomic nucleus.

    • Sandro Kraemer
    • , Janni Moens
    •  & Ulrich Wahl

  • Article
    | Open Access

    Lithographically patterned perovskite nanocrystal arrays were used to determine radiation vectors from X-rays to visible light and the emission colours of the nanoparticles was used to create images of three-dimensional objects and for phase-contrast imaging.

    • Luying Yi
    • , Bo Hou
    •  & Xiaogang Liu

  • Article
    | Open Access

    A meta-imaging sensor detects an extra-fine 4D light field distribution using a vibrating microlens array, enabling high-resolution 3D photography up to a gigapixel with fast aberration correction, demonstrated on a telescope aimed at the Moon.

    • Jiamin Wu
    • , Yuduo Guo
    •  & Qionghai Dai

  • Article
    | Open Access

    Shear phenomena in the infrared dielectric response of a monoclinic crystal are shown to unveil a new polariton class termed hyperbolic shear polariton that can emerge in any low-symmetry monoclinic or triclinic system.

    • Nikolai C. Passler
    • , Xiang Ni
    •  & Alexander Paarmann

  • Article |

    A combination of multiview imaging, structured illumination, reconstruction algorithms and deep-learning predictions realizes spatial- and temporal-resolution improvements in fluorescence microscopy to produce super-resolution images from diffraction-limited input images.

    • Yicong Wu
    • , Xiaofei Han
    •  & Hari Shroff

  • Article |

    The dynamics of ions within a working lithium-ion battery are examined using optical interferometric scattering microscopy, which allows ion transport to be related to phase transitions and microstructural features.

    • Alice J. Merryweather
    • , Christoph Schnedermann
    •  & Akshay Rao

  • Article |

    A quantum microscope obtains signal-to-noise beyond the photodamage limits of conventional microscopy, revealing biological structures within cells that would not otherwise be resolved.

    • Catxere A. Casacio
    • , Lars S. Madsen
    •  & Warwick P. Bowen

  • Article |

    A compact, high-performance silicon photonics-based light detection and ranging system for three-dimensional imaging is developed that should be amenable to low-cost mass manufacturing

    • Christopher Rogers
    • , Alexander Y. Piggott
    •  & Remus Nicolaescu

  • Article |

    The strong interaction of coherent free electrons with a photonic-crystal cavity enables the measurement of the lifetimes of the cavity modes and provides a technique for multidimensional near-field imaging and spectroscopy.

    • Kangpeng Wang
    • , Raphael Dahan
    •  & Ido Kaminer

  • Article |

    A massively parallel coherent light detection and ranging (lidar) scheme using a soliton microcomb—a light source that emits a wide spectrum of sharp lines with equally spaced frequencies—is described.

    • Johann Riemensberger
    • , Anton Lukashchuk
    •  & Tobias J. Kippenberg

  • Article |

    A vibrational spectroscopy technique that measures the electric field emitted from organic molecules following infrared illumination allows their molecular fingerprints to be separated from the excitation background, even in complex biological samples.

    • Ioachim Pupeza
    • , Marinus Huber
    •  & Ferenc Krausz

  • Letter |

    A faint penumbra in a photograph of a diffuse surface enables recovery of the position of the object creating the penumbra and an image of the scene behind it.

    • Charles Saunders
    • , John Murray-Bruce
    •  & Vivek K Goyal

  • Article |

    The displacement of a mechanical resonator is measured to within 35% of the Heisenberg uncertainty limit, enabling feedback cooling to the quantum ground state, nine decibels below the quantum-backaction limit.

    • Massimiliano Rossi
    • , David Mason
    •  & Albert Schliesser

  • Letter |

    Using optical mapping and 3D ultrasound, the dynamics and interactions between electrical and mechanical phase singularities were analysed by simultaneously measuring the membrane potential, intracellular calcium concentration and mechanical contractions of the heart during normal rhythm and fibrillation.

    • J. Christoph
    • , M. Chebbok
    •  & S. Luther

  • Letter |

    The response of a ternary, parity–time-symmetric system that exhibits a third-order exceptional point increases as a function of the cube-root of induced perturbations.

    • Hossein Hodaei
    • , Absar U. Hassan
    •  & Mercedeh Khajavikhan

  • Letter |

    Stimulated Raman scattering under electronic pre-resonance conditions, combined with a new palette of probes, enables super-multiplex imaging of molecular targets in living cells with very high vibrational selectivity and sensitivity.

    • Lu Wei
    • , Zhixing Chen
    •  & Wei Min

  • Letter |

    Hsp70 binds unfolded protein segments in its groove, but can also bind and stabilize folded protein structures, owing to its moveable lid, with ATP hydrolysis and co-chaperones allowing control of these contrasting effects.

    • Alireza Mashaghi
    • , Sergey Bezrukavnikov
    •  & Sander J. Tans

  • Letter |

    Combining cavity-enhanced direct frequency comb spectroscopy with buffer gas cooling enables rapid collection of well-resolved infrared spectra for molecules such as nitromethane, naphthalene and adamantane, confirming the value of the combined approach for studying much larger and more complex molecules than have been probed so far.

    • Ben Spaun
    • , P. Bryan Changala
    •  & Jun Ye

  • Letter |

    A small-angle X-ray scattering computed tomography method that reduces the amount of data that needs to be collected and analysed to reconstruct the three-dimensional scattering distribution in reciprocal space of a three-dimensional sample in real space is demonstrated by measuring the orientation of collagen fibres within a human tooth.

    • Florian Schaff
    • , Martin Bech
    •  & Franz Pfeiffer

  • Letter |

    A technique based on compressed imaging with a streak camera is reported that can videotape transient events in two dimensions with temporal resolution down to tens of picoseconds, and its usefulness is demonstrated using single laser shots applied to a variety of physical phenomena.

    • Liang Gao
    • , Jinyang Liang
    •  & Lihong V. Wang

  • Letter |

    Here, using two-photon phosphorescence lifetime microscopy, the local oxygen tension in the bone marrow of live mice is found to be quite low, with spatiotemporal variations depending on the blood vessel type, distance to the endosteum, and changes in cellularity after stress.

    • Joel A. Spencer
    • , Francesca Ferraro
    •  & Charles P. Lin

  • Outlook |

    Richard R. Ernst pioneered one- and two-dimensional nuclear magnetic resonance (NMR), and talks to Stephanie Harris about why dimensions are important in life as well as in science.

  • Letter |

    A new multiplex technique of coherent anti-Stokes Raman spectro-imaging with two laser frequency combs is shown to record molecular spectra of broad bandwidth on a microsecond scale.

    • Takuro Ideguchi
    • , Simon Holzner
    •  & Theodor W. Hänsch

  • Letter |

    The image of a fluorescent object hidden behind an opaque layer can be retrieved non-invasively by exploiting the correlation properties of the speckle pattern produced by illuminating the object through the layer using laser light.

    • Jacopo Bertolotti
    • , Elbert G. van Putten
    •  & Allard P. Mosk

  • News |

    Intel invests US$1 billion into extreme-ultraviolet light technology that will quarter the size of transistors.

    • Katherine Bourzac

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