Imaging techniques articles within Nature Communications

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  • Article
    | Open Access

    Achieving uniform spin excitation, crucial for MRI, is challenging in the electrically large human body at UHF. Here, authors introduce an innovative dielectric waveguide specifically designed for traveling-wave MRI, which enhances homogeneity and efficiency through effective wave manipulation.

    • Yang Gao
    • , Tong Liu
    •  & Xiaotong Zhang

  • Article
    | Open Access

    Current approaches for volumetric super-resolution microscopy can yield large and complex PSF spatial footprints. Here, the authors show a super-resolution microscopy approach using a hexagonal microlens array, which offers speed improvements in volumetric imaging compared to other single-molecule methods.

    • Sam Daly
    • , João Ferreira Fernandes
    •  & Steven F. Lee

  • Article
    | Open Access

    Porosity is a key issue in additive manufacturing (AM). Here, the authors reveal the bubble evolution mechanisms including formation, coalescence, pushing, growth, entrainment, escape, and entrapment during directed energy deposition AM using in situ X-ray imaging and multiphysics modelling.

    • Kai Zhang
    • , Yunhui Chen
    •  & Peter D. Lee

  • Article
    | Open Access

    The evolution of Pd-based material during CO2 electroreduction requires further investigation. Here the authors use in-situ liquid-phase transmission electron microscopy and select area diffraction characterization techniques to visualize the morphological and phase structure evolution of the Pd/PdHx catalysts under CO2 electroreduction conditions.

    • Ahmed M. Abdellah
    • , Fatma Ismail
    •  & Drew Higgins

  • Article
    | Open Access

    Process development for 3D printing of new metal alloys can be time-consuming and variability in the printing outcome makes it even more challenging. Here, authors demonstrate an in-situ method using high-speed imaging and deep learning to accelerate the process design for a more consistent quality.

    • David Guirguis
    • , Conrad Tucker
    •  & Jack Beuth

  • Article
    | Open Access

    Drones are an effective and flexible tool for safety assessment of aging infrastructure, especially in locations with challenging accessibility. Here, authors demonstrate a phase-based sampling moiré technique with a drone for measurement of millimeter-scale infrastructural displacement in bridges.

    • Shien Ri
    • , Jiaxing Ye
    •  & Norihiko Ogura

  • Article
    | Open Access

    In the pursuit of advancing laser powder bed fusion (LPBF) technology, researchers have successfully converged the realms of sound and light. Here, the authors unveil the synergistic potential of synchronized x-ray imaging and acoustics to illuminate hidden instabilities in LPBF process.

    • Milad Hamidi Nasab
    • , Giulio Masinelli
    •  & Roland E. Logé

  • Article
    | Open Access

    Transmission electron microscopy is essential for three-dimensional atomic structure determination, but solving complex heterogeneous structures containing light elements remains challenging. Here, authors solve a complex nanostructure using atomic resolution ptychographic electron tomography.

    • Philipp M. Pelz
    • , Sinéad M. Griffin
    •  & Colin Ophus

  • Article
    | Open Access

    Next-generation light sources and fast detectors enable unparalleled materials characterization, but increased data rates and compute needs preclude real-time analysis. Here, Babu et al. leverage high-performance computing and AI@Edge to achieve real-time, low-dose imaging on streaming data at 2 KHz.

    • Anakha V. Babu
    • , Tao Zhou
    •  & Mathew J. Cherukara

  • Article
    | Open Access

    Electron holography and microscopy have long been used to map static electric and magnetic fields. Here, authors establish Lorentz Microscopy of Optical Fields, a new technique that uses the deflection and interference of an electron beam to obtain phase-resolved images of nanoscale optical fields.

    • John H. Gaida
    • , Hugo Lourenço-Martins
    •  & Claus Ropers

  • Article
    | Open Access

    Here, the authors correlate the position and spectral emission properties of single photon emitters in monolayer WSe2 with the surrounding local strain potential by combining deep-subwavelength photoluminescence imaging and atomic force microscopy, providing insights on the microscopic mechanisms behind the formation of the quantum emitters.

    • Artem N. Abramov
    • , Igor Y. Chestnov
    •  & Vasily Kravtsov

  • Article
    | Open Access

    Demand for data recovery from monolithic storage devices is high but current methods are inefficient. Here, authors develop a robotic OCT-guided inspection and microsurgery method, minimizing damage to device and enhancing data recovery efficiency.

    • Bin He
    • , Yuxin Zhang
    •  & Ning Zhang

  • Article
    | Open Access

    By carefully inducing twists or lattice stacking offsets between two adjacent van der Waals crystals, a superlattice potential can be introduced. This Moire lattice offers an incredibly rich physics, ranging from superconductivity to exotic magnetism, depending on van der Waals materials in question. Here, Du et al. study the magnetic domains in twisted CrI3, and show that despite this domain structure, spin fluctuations are spatially homogenous.

    • Mengqi Huang
    • , Zeliang Sun
    •  & Chunhui Rita Du

  • Article
    | Open Access

    Electron detectors used in electron microscope are often unable to provide quantified information without calibration. Here, by combining existing detectors with hardware signal processing, the authors demonstrated that the detectors can be run in an electron counting mode enabling imaging at faster speeds, at lower electron doses, and reduces the barrier to quantitative measurements.

    • Jonathan J. P. Peters
    • , Tiarnan Mullarkey
    •  & Lewys Jones

  • Article
    | Open Access

    pH alterations are a hallmark of many pathologies including cancer and kidney disease. Here the authors describe [1,5- 13 C2]Z-OMPD as a probe for hyperpolarized 13C-MRI with good pH sensitivity and hyperpolarization properties which combined with tailored MRI protocols allow sub-minute imaging of pH, renal perfusion and filtration simultaneously.

    • Martin Grashei
    • , Pascal Wodtke
    •  & Franz Schilling

  • Article
    | Open Access

    The authors present μeV electron spectromicroscopy, a technique that combines free-space light and electron beams to achieve unmatched spatial and spectral resolution. This approach enables detailed investigation of photonic structures, promising advancements in microscopy and quantum optics.

    • Yves Auad
    • , Eduardo J. C. Dias
    •  & Mathieu Kociak

  • Article
    | Open Access

    Recent electron microscopy techniques have attracted significant attention for their ability to image electric fields at the atomic level. Here, the authors investigate the possibility to separate the charge density contributions of core and valence electrons in monolayer MoS2, highlighting the limitations induced by the electron probe shape.

    • Joel Martis
    • , Sandhya Susarla
    •  & Arun Majumdar

  • Article
    | Open Access

    Most non-line-of-sight imaging requires scanned illumination, limiting applicability for dynamic scenes. Here the authors exploit occlusion and a sensor array to estimate locations and sizes of moving foreground objects and a static background map.

    • Sheila Seidel
    • , Hoover Rueda-Chacón
    •  & Vivek K Goyal

  • Article
    | Open Access

    Optoacoustic super-resolution at millimeter-scale depths has been impeded by the strong background absorption from blood cells. Here, the authors use dichloromethane microdroplets with high optical absorption and demonstrate 3D microangiography of the mouse brain via optoacoustic localization.

    • Xosé Luís Deán-Ben
    • , Justine Robin
    •  & Daniel Razansky

  • Article
    | Open Access

    The authors develop a deep learning-based incoherent holographic camera system in order to deliver visually enhanced holograms in real-time. The neural network filters the noise in the captured holograms, and by integrating a holographic camera and a display, they demonstrate a holographic streaming system.

    • Hyeonseung Yu
    • , Youngrok Kim
    •  & Hong-Seok Lee

  • Article
    | Open Access

    The sparse, noisy, and distorted raw photon data captured by single-photon cameras make it difficult to estimate scene properties under challenging illumination conditions. Here, the authors present Collaborative photon processing for Active Single-Photon Imaging (CASPI), a technology-agnostic, application-agnostic, and training-free photon processing pipeline for high-resolution single-photon cameras.

    • Jongho Lee
    • , Atul Ingle
    •  & Mohit Gupta

  • Article
    | Open Access

    Lattice reconstruction crucially influences the electronic properties of twisted van der Waals structures. Here, the authors report a quantitative characterization of the mechanical deformations occurring in small-angle twisted bilayers and heterobilayers of 2D semiconductors via interferometric 4D scanning transmission electron microscopy.

    • Madeline Van Winkle
    • , Isaac M. Craig
    •  & D. Kwabena Bediako

  • Article
    | Open Access

    In this work, the authors use near-field ptychographic nanotomography to visualize cement hydration in situ. They report hydration features with submicrometer detail including calcium silicate dissolution rates, etch-pit growth rates and water-to-air porosity evolution.

    • Shiva Shirani
    • , Ana Cuesta
    •  & Miguel A. G. Aranda

  • Article
    | Open Access

    Corrosion is a ubiquitous failure mode in materials. Here the authors report a percolating 1D wormhole corrosion morphology using advanced electron microscopy and theoretical simulations. The work presents a vacancy mapping method with nm-resolution, identifying the incubation sites of the wormholes.

    • Yang Yang
    • , Weiyue Zhou
    •  & Andrew M. Minor

  • Article
    | Open Access

    Neutral helium microscopy is a completely nondestructive, surface-sensitive imaging technique. Here, the authors demonstrate sub-resolution contrast using an advanced facet scattering model to reconstruct the topography of technological thin films in the ångström range.

    • Sabrina D. Eder
    • , Adam Fahy
    •  & Paul C. Dastoor

  • Article
    | Open Access

    Standard platinum-based chemotherapy is the basis of treatment of many cancers, however a proportion of patients do not derive benefit. Here the authors show that the platinum-based drug oxaliplatin accumulates in cancer-associated fibroblasts, activating pathways associated with cancer progression and resistance to therapy.

    • Jenniffer Linares
    • , Anna Sallent-Aragay
    •  & Alexandre Calon

  • Article
    | Open Access

    The authors present single-pixel imaging accelerated via swept aggregate patterns (SPI-ASAP), which combines a digital micromirror device with laser scanning for fast and reconfigurable pattern projection, and a lightweight reconstruction algorithm. They demonstrate real-time video streaming at 100 fps, and up to 12,000 fps offline.

    • Patrick Kilcullen
    • , Tsuneyuki Ozaki
    •  & Jinyang Liang

  • Article
    | Open Access

    Super-resolution microscopy techniques can be challenging for live cells and thick samples. Here, the authors propose a method to reduce beam intensity and remove out-of-focus fluorescence background in image-scanning microscopy (ISM) and its combination with stimulated emission depletion (STED).

    • Giorgio Tortarolo
    • , Alessandro Zunino
    •  & Giuseppe Vicidomini

  • Article
    | Open Access

    Traditional methods for cell stiffness measurements are limited by long processing times and unsuitability for multiple cell analysis. Here, the authors demonstrate a fast technique based on acoustic stimulation and holographic imaging to reconstruct whole-cell stiffness maps of individual and multiple cells.

    • Rahmetullah Varol
    • , Zeynep Karavelioglu
    •  & Huseyin Uvet

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