Results 41 to 50 of about 1,452 (172)

Achieving High Spatial Resolution Transmission Electron Microscopy Studies in Closed Liquid Cells

Advanced Materials, EarlyView.
Achieving high spatial resolution is important for resolving nanoscale dynamic processes and structural transformations in liquid environments, yet remains challenging in liquid cell transmission electron microscopy (LCTEM). This review highlights key strategies, including mitigating membrane bulging, displacing or redistributing local liquid ...
Siqi Guo, Hongyu Sun, Le Shu, Xuejin Ge, Raquel Aymerich‐Armengol, Siyuan Zhang, Long Ren, Ningyan Cheng, Christina Scheu, Binghui Ge   +9 more
wiley   +1 more source

Lensless Imaging via Blind Ptychography Modulation and Wavefront Separation

Photonics, 2023
A novel lensless imaging approach based on ptychography and wavefront separation is proposed in this paper, which was characterized by rapid convergence and high-quality imaging.
Cheng Xu, Hui Pang, Axiu Cao, Qiling Deng, Song Hu, Huajun Yang   +5 more
doaj   +1 more source

A Reversible Clearing Strategy Enables Robust Label‐Free Phase Imaging of Thick Tissues

Laser &Photonics Reviews, EarlyView.
The principle of a reversible clearing strategy via glycerol and tartrazine solution (GTS) for robust whole‐slide label‐free phase imaging of thick tissue slices via high‐throughput Fourier ptychographic microscopy (FPM) and lensless digital holographic microscopy (LDHM). ABSTRACT Thick biological specimens impose strong scattering and attenuation that
Mikołaj Krysa, Anna Chwastowicz, Małgorzata Lenarcik, Paweł Matryba, Piotr Zdańkowski, Maciej Trusiak   +5 more
wiley   +1 more source

Multi-beam multi-slice X-ray ptychography

Scientific Reports
X-ray ptychography provides the highest resolution non-destructive imaging at synchrotron radiation facilities, and the efficiency of this method is crucial for coping with limited experimental time.
Mattias Åstrand, Ulrich Vogt, Runqing Yang, Pablo Villanueva Perez, Tang Li, Mikhail Lyubomirskiy, Maik Kahnt   +6 more
doaj   +1 more source

Domain‐Wall Circulation Gating and Pinning via Compositional Engineering of Cylindrical Nanowires

Small, EarlyView.
Cylindrical magnetic nanowires offer a promising platform for future three‐dimensional spintronic devices. By strategically engineering nanometer‐scale chemical modulations, a novel circulation gate is established to control domain wall propagation.
Laura Álvaro‐Gómez, Claudia Fernández‐González, Sandra Ruiz‐Gómez, Nicolas Mille, Jean Christophe Toussaint, Rachid Belkhou, Michael Foerster, Eva Pereiro, Lucía Aballe, Núria Bagués, Christophe Thirion, Daria Gusakova, Aurelien Masseboeuf, Olivier Fruchart, Lucas Pérez   +14 more
wiley   +1 more source

Live Iterative Ptychography

Microscopy and Microanalysis
Abstract We demonstrate live-updating ptychographic reconstruction with the extended ptychographical iterative engine, an iterative ptychography method, during ongoing data acquisition. The reconstruction starts with a small subset of the total data, and as the acquisition proceeds the data used for reconstruction are extended.
Weber, Dieter, Ehrig, Simeon, Schropp, Andreas, Clausen, Alexander, Achilles, Silvio, Hoffmann, Nico, Bussmann, Michael, Dunin-Borkowski, Rafal E, Schroer, Christian G   +8 more
openaire   +6 more sources

Dynamic Imaging Using Ptychography [PDF]

Physical Review Letters, 2014
We demonstrate through experiment an example of "mixed state" reconstruction using x-ray ptychography. We demonstrate successful imaging of a vibrating sample that has dynamics that are of one order magnitude faster than the measurement times. We show how increased vibrational amplitude leads to an increased population of illumination modes, a ...
Clark, JN, Huang, X, Harder, RJ, Robinson, IK   +3 more
openaire   +3 more sources

Imaging Ionic Displacements Across Inclined Ferroelectric Domains by a Reciprocity Approach to 4D‐STEM

Small, EarlyView.
Four‐dimensional STEM comprises a vast portfolio of electron microscopy methods in one data set, conventional plane‐wave illumination TEM being one of them. Here, the principle of reciprocity is employed to produce true structural projections of misoriented ferroelectric domains at atomic resolution. By reciprocal TEM imaging from four‐dimensional STEM
Jean Felix Dushimineza, Max Leo Leidl, Sebastian Sturm, Thibaud Denneulin, Knut Müller‐Caspary   +4 more
wiley   +1 more source

Correlative X‐ray imaging and fluorescence microscopy in hydrated environments

Journal of Synchrotron Radiation, EarlyView.
We present a combined imaging platform that integrates beamline‐compatible fluorescence microscopy with scanning small‐angle X‐ray scattering to enable sequential multimodal investigations of hydrated cells under near‐native conditions. We apply our method to ordered cytoskeletal structures in different cell types and demonstrate the direct correlation
Mangalika Sinha, Boram Yu, Rita Mendes Da Silva, Ulrike Rölleke, Peter Luley, Malte Tiburcy, Wolfram-Hubertus Zimmermann, Manfred Burghammer, Sarah Köster   +8 more
wiley   +1 more source

Optimized Phase-Retrieval Technique for Coherent Diffractive Microscopy: Guided Ptychography Iterative Engine

IEEE Photonics Journal, 2022
We have developed a guided ptychography iterative engine (gPIE) algorithm that applies the concept of optimization to the conventional ePIE (extended ptychography iterative engine) approach.
Cheng-Wei Hsu, Ping Lu, Pei-Chi Huang, Jia-Ru Yu, Chi Chen, Shang-Da Yang, Chien-Chun Chen   +6 more
doaj   +1 more source