Results 71 to 80 of about 3,149 (205)

X‐Ray Multibeam Ptychography at up to 20 keV: Nano‐Lithography Enhances X‐Ray Nano‐Imaging

Advanced Science
Hard X‐rays are needed for non‐destructive nano‐imaging of solid matter. Synchrotron radiation facilities (SRF) provide the highest‐quality images with single‐digit nm resolution using advanced techniques such as X‐ray ptychography.
Tang Li, Maik Kahnt, Thomas L. Sheppard, Runqing Yang, Ken V. Falch, Roman Zvagelsky, Pablo Villanueva‐Perez, Martin Wegener, Mikhail Lyubomirskiy   +8 more
doaj   +1 more source

Resolving the Internal Magnetic Domain Structure of Cloudy Zone Tetrataenite

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Recent advances in magnetic imaging can directly capture the internal magnetization of natural and synthetic materials at resolutions <10 nm. This capability opens new possibilities to determine the magnetic domain state of ferromagnetic minerals that are fundamental for recording and retaining paleomagnetic records.
Elias N. Mansbach, Richard J. Harrison, Tim A. Butcher, Simone Finizio, Sergio Valencia, Thomas Ginnis   +5 more
wiley   +1 more source

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

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

Terahertz Encryption With a Polarization‐Sensitive Metasurface

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
We propose a dual‐functional terahertz encryption metasurface that enables independent information retrieval in both the near field and the far field within a single device. In the near field, polarization‐selective amplitude modulation reveals textual patterns, whereas in the far field, phase engineering encodes multiple digital data in focal‐spot ...
Yixuan He, Huan Zhao, Tong Nan, Xinke Wang, Yan Zhang   +4 more
wiley   +1 more source

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   +3 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

Magnetic Force Microscopy Signatures of Higher‐Order Skyrmions and Antiskyrmions

Advanced Functional Materials, Volume 36, Issue 41, 21 May 2026.
Magnetic force microscopy operated under vacuum conditions enables the qualitative identification of higher‐order skyrmions and antiskyrmions in Co/Ni multilayers at room temperature. Distinct stray‐field contrast signatures arise from vertical Bloch lines and complex domain‐wall configurations.
Sabri Koraltan, Joe Sunny, Tamer Karaman, Reshma Peremadathil‐Pradeep, Emily Darwin, Felix Büttner, Dieter Suess, Hans Josef Hug, Manfred Albrecht   +8 more
wiley   +1 more source

Sim-Ptychography Imaging of Hutchinson-Gilford Progeria Syndrome (HGPS) Cells

, 2021
180a Wednesday, February 24, 2021 ptychographic module was developed and mounted on a commercial SIM, to simultaneously collect ptychography and SIM data.
Cainero, Isotta, Anthony, Nicholas, Trianni, Alberta, Diaspro, Alberto   +3 more
core   +1 more source

Pupil Plane Multiplexing for Vectorial Fourier Ptychography

Laser &Photonics Reviews, Volume 20, Issue 9, 6 May 2026.
This study proposes a cost‐effective, modality‐adaptive multichannel microscopy framework using pupil‐plane multiplexing. A custom pupil aperture at the Fourier plane encodes channel‐specific transfer functions with spectral or polarization filters, and model‐based reconstruction with channel‐dependent priors decodes them.
Hyesuk Chae, Kyungwon Lee, Yong Guk Kang, Hansol Yoon, Kyung Chul Lee, Seung Ah Lee   +5 more
wiley   +1 more source