Results 61 to 70 of about 1,452 (172)

Characterization of near-field ptychography

Optics Express, 2015
Near-field X-ray ptychography has recently been proposed and shown to be able to retrieve a sample's complex-valued transmission function from multiple near-field diffraction images each with a lateral shift of the sample and with a structured (by a diffuser) illumination [Stockmar et al. Sci Rep. 3 (2013)].
Richard M, Clare, Marco, Stockmar, Martin, Dierolf, Irene, Zanette, Franz, Pfeiffer   +4 more
openaire   +2 more sources

Digital pathology with Fourier ptychography [PDF]

Computerized Medical Imaging and Graphics, 2015
Fourier ptychographic microscopy (FPM) is a recently introduced method of acquiring high-resolution, wide field of view (FOV) giga-pixel histology images. The FPM procedure first acquires a sequence of low-resolution images of a sample under variable-angle illumination.
Roarke Horstmeyer, Xiaoze Ou, Guoan Zheng, Phil Willems, Changhuei Yang   +4 more
openaire   +4 more sources

Continuous-Wave THz Imaging for Biomedical Samples

Applied Sciences, 2020
In the past few decades, the applications of terahertz (THz) spectroscopy and imaging technology have seen significant developments in the fields of biology, medical diagnosis, food safety, and nondestructive testing.
Yaya Zhang, Chuting Wang, Bingxin Huai, Shiyu Wang, Yating Zhang, Dayong Wang, Lu Rong, Yongchang Zheng   +7 more
doaj   +1 more source

Disorder‐Broadened Topological Hall Phase and Anomalous Hall Scaling in FeGe

Advanced Functional Materials, Volume 36, Issue 79, 1 October 2026.
By systematically introducing defects into FeGe via ion‐beam modification, we demonstrate that disorder broadens the temperature regime over which the topological Hall effect ‐ a signature of skyrmions or other chiral textures — appears, while also increasing its magnitude.
Chaman Gupta, Chris Matsumura, Hongbin Yang, Sarah Edwards, Rebeca M. Gurrola, Jiun‐Haw Chu, Hanjong Paik, Yongqiang Wang, David A. Muller, Robert Streubel, Tzu‐Ming Lu, Serena Eley   +11 more
wiley   +1 more source

Ptychography with a Virtually Enlarged Illumination. [PDF]

Microscopy and Microanalysis, 2018
14th International Conference on X-ray Microscopy, Saskatoon, Canada, 20 Aug 2018 - 24 Aug 2018; Microscopy and microanalysis 24(S2), 48 - 49 (2018).
Wittwer, Felix, Hoppe, Robert, Seiboth, Frank, Reinhardt, Juliane, Scholz, Maria, Schroer, Christian   +5 more
openaire   +2 more sources

Direct observation of single-atom defects in monolayer two-dimensional materials by using electron ptychography at 200 kV acceleration voltage

Scientific Reports
Electron ptychography has emerged as a popular technology for high-resolution imaging by combining the high coherence of electron sources with the ultra-fast scanning electron coil.
Ying Chen, Tzu-Chieh Chou, Ching-Hsing Fang, Cheng-Yi Lu, Chien-Nan Hsiao, Wei-Ting Hsu, Chien-Chun Chen   +6 more
doaj   +1 more source

W1-Net: a highly scalable ptychography convolutional neural network

Advanced Optical Technologies
X-ray ptychography is a coherent diffraction imaging technique that allows for the quantitative retrieval of both the amplitude and phase information of a sample in diffraction-limited resolution.
Chengye Xing, Chengye Xing, Lei Wang, Yangyang Mu, Yu Li, Yu Li, Guangcai Chang   +6 more
doaj   +1 more source

High-Resolution Broadband Ptychography with an EUV Continuum

Photonics
Ptychography implemented with coherent high-harmonic (HHG) sources enables high-resolution, high-fidelity imaging of nanostructures and biosystems. However, when driven by mid-infrared lasers to generate light at higher photon energies, HHG inherently ...
Nicholas W. Jenkins, Wilhelm Eschen, Will Hettel, John Gallagher, Benjamin Shearer, Gabriella Seifert, Yunzhe Shao, Clay Klein, Drew Morrill, Grzegorz Golba, Michaël Hemmer, Henry Kapteyn, Margaret Murnane   +12 more
doaj   +1 more source

Motion-corrected Fourier ptychography

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 reconstruction and limits its practicability.
Bian, Liheng, Zheng, Guoan, Guo, Kaikai, Suo, Jinli, Yang, Changhuei, Chen, Feng, Dai, Qionghai   +6 more
openaire   +4 more sources

Jungfraujoch: 38 GB s−1 real‐time serial crystallography – data acquisition and live indexing feedback

Journal of Applied Crystallography, Volume 59, Issue 5, Page 1668-1677, October 2026.
Jungfraujoch is a single‐node FPGA–GPU server that enables 38 GB s−1 real‐time crystallographic data acquisition using the PSI JUNGFRAU 9M detector at 2 kHz, with simultaneous on‐the‐fly processing, spot finding and indexing, and optional adaptive data reduction during continuous data streaming.Significant growth in the quantity of data presents a ...
J. Duan, H.-C. Stadler, J. Nan, Z. Matěj, G. Gotthard, F. Dworkowski, M. Bjelcic, O. Aurelius, A. Mozzanica, S. Grimm, M. Burian, T. Ursby, M. Wang, F. Leonarski   +13 more
wiley   +1 more source