Results 11 to 20 of about 7,202 (228)

Development of electron ptychography from algorithms, detectors to its applications [PDF]

Applied Microscopy
Electron ptychography has emerged as a powerful computational imaging technique using four-dimensional scanning transmission electron microscopy, greatly exceeding the resolution limits of conventional electron microscopes by quantitative phase retrieval.
Wonwoo Suh, Jeewon B. Choi, Keun-Yeol Park, Celesta S. Chang   +3 more
doaj   +2 more sources

Ultra-broadband ptychography for dispersive samples [PDF]

Nature Communications
X-ray ptychography has emerged as a powerful imaging tool on X-ray synchrotron facilities. Implementation of ptychography on laboratory-scale X-ray sources has largely been hindered by their poor temporal coherence and low flux.
Huixiang Lin, Angyi Lin, Xiaoyu Jin, Kui Li, Jin Niu, Jie Li, Xiaoshi Zhang, Tao Liu, Wenhui Xu, Fucai Zhang   +9 more
doaj   +2 more sources

Multi-beam multi-slice X-ray ptychography [PDF]

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   +2 more sources

Motion-corrected Fourier ptychography [PDF]

Biomedical Optics Express, 2016
Fourier ptychography (FP) is a recently proposed computational imaging technique for high space-bandwidth product imaging. In real setups such as endoscope and transmission electron microscope, the common sample motion largely degrades the FP ...
Bian, Liheng, Chen, Feng, Dai, Qionghai, Guo, Kaikai, Suo, Jinli, Yang, Changhuei, Zheng, Guoan   +6 more
core   +5 more sources

Acousto-optic Ptychography [PDF]

Optica, 2021
Acousto-optic imaging (AOI) enables optical-contrast imaging deep inside scattering samples via localized ultrasound-modulation of scattered light. While AOI allows optical investigations at depths, its imaging resolution is inherently limited by the ultrasound wavelength, prohibiting microscopic investigations. Here, we propose a computational imaging
Moriya Rosenfeld, Daniel Doktofsky, Gil Weinberg, Yunzhe Li, Lei Tian, Ori Katz   +5 more
openalex   +3 more sources

Atomically resolved imaging of radiation-sensitive metal-organic frameworks via electron ptychography [PDF]

Nature Communications
Electron ptychography, recognized as an ideal technique for low-dose imaging, consistently achieves deep sub-angstrom resolution at electron doses of several thousand electrons per square angstrom (e−/Å2) or higher.
Guanxing Li, Ming Xu, Wen-Qi Tang, Ying Liu, Cailing Chen, Daliang Zhang, Lingmei Liu, Shoucong Ning, Hui Zhang, Zhi-Yuan Gu, Zhiping Lai, David A. Muller, Yu Han   +12 more
doaj   +2 more sources

Attoclock Ptychography [PDF]

Applied Sciences, 2018
Dedicated simulations show that the application of time-domain ptychography to angular photo-electron streaking data allows shot-to-shot reconstruction of individual X-ray free electron laser pulses.
Tobias Schweizer, Michael H. Brügmann, Wolfram Helml, Nick Hartmann, Ryan Coffee, Thomas Feurer   +5 more
doaj   +4 more sources

Enhanced Imaging in Scanning Transmission X-Ray Microscopy Assisted by Ptychography [PDF]

Nanomaterials
Scanning transmission X-ray microscopy (STXM) is a direct imaging technique with nanoscale resolution. But its resolution is limited by the spot size on the sample, i.e., by the manufacturing technique of the focusing element.
Shuhan Wu, Zijian Xu, Ruoru Li, Sheng Chen, Yingling Zhang, Xiangzhi Zhang, Zhenhua Chen, Renzhong Tai   +7 more
doaj   +2 more sources

Low-dose cryo-electron ptychography of proteins at sub-nanometer resolution [PDF]

BIO Web of Conferences
Kucukoglu Berk, Mohammed Inayathulla, Guerrero-Ferreira Ricardo C., Ribet Stephanie M., Varnavides Georgios, Leidl Max Leo, Lau Kelvin, Nazarov Sergey, Myasnikov Alexander, Sachse Carsten, Müller-Caspary Knut, Ophus Colin, Stahlberg Henning   +12 more
doaj   +4 more sources

X-ray near-field multi-slice ptychography for in-situ imaging [PDF]

Scientific Reports
In-situ imaging of chemical reactions can provide valuable insight into nanoparticle growth and structural evolution. Hard X-ray imaging is an excellent tool for this purpose, as it combines high spatial resolution with high penetration depth, allowing ...
Sina Röper, Karolina Stachnik, Jonas Voss, Sarah-Alexandra Hussak, Mattias Åstrand, Lukas Grote, Felix Wittwer, Martin Seyrich, Sven Niese, Peter Gawlitza, Ulrich Vogt, Christian G. Schroer, Dorota Koziej, Andreas Schropp   +13 more
doaj   +2 more sources