Results 31 to 40 of about 7,202 (228)
Fourier ptychography: current applications and future promises [PDF]
Optics Express, 2020 Traditional imaging systems exhibit a well-known trade-off between the resolution and the field of view of their captured images. Typical cameras and microscopes can either “zoom in” and image at high-resolution, or they can “zoom out” to see a larger area at lower resolution, but can rarely achieve both effects simultaneously.
Pavan Chandra Konda +5 more
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Journal of Synchrotron Radiation, 2023 Spectro-ptychography offers improved spatial resolution and additional phase spectral information relative to that provided by scanning transmission X-ray microscopes.
Jaianth Vijayakumar +8 more
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Single-shot ptychography at a soft X-ray free-electron laser
Scientific Reports, 2022 In this work, single-shot ptychography was adapted to the XUV range and, as a proof of concept, performed at the free-electron laser FLASH at DESY to obtain a high-resolution reconstruction of a test sample. Ptychography is a coherent diffraction imaging
Konstantin Kharitonov +10 more
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Scientific Reports, 2023 Direct observation of Cu in Cu-chabazite (CHA) zeolite has been achieved by electron ptychography using the Wigner distribution deconvolution. The imaging properties of ptychographically reconstructed images were evaluated by comparing the intensities of
Kazutaka Mitsuishi +6 more
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Reflective Fourier ptychography [PDF]
Journal of Biomedical Optics, 2016 The Fourier ptychography technique in reflection mode has great potential applications in tissue imaging and optical inspection, but the current configuration either has a limitation on cut-off frequency or is not practical. By placing the imaging aperture stop outside the illumination path, the illumination numerical aperture (NA) can be greater than ...
Shaun, Pacheco +2 more
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Ptychography in anisotropic media [PDF]
Optics Letters, 2015 This letter describes ptychography in the context of polarized light probing anisotropic specimen (i.e., showing properties of birefringence and/or diattenuation). We established an optimization strategy using a vectorial formalism. We propose a measurement scheme using a set of linearly polarized probes and linear polarization analyzers, which allows ...
Patrick Ferrand +2 more
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Ptychography at the carbon K-edge
Communications Materials, 2022 Ptychography is an imaging technique based on algorithmic reconstruction of diffraction patterns that improves the spatial resolution of scanning transmission X-ray microscopy. Here, the possibility of ptychography at the carbon K-edge is demonstrated on
Nicolas Mille +8 more
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IEEE Photonics Journal, 2023 Fourier ptychography (FP) is a computational imaging technique with the advantage that it can obtain large field-of-view (FOV) and high-resolution (HR) imaging.
Baopeng Li +6 more
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X-ray ptychography on low-dimensional hard-condensed matter materials [PDF]
, 2019 Tailoring structural, chemical, and electronic (dis-)order in heterogeneous media is one of the transformative opportunities to enable new functionalities and sciences in energy and quantum materials.
Burdet, N +6 more
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Deep reinforcement learning for data-driven adaptive scanning in ptychography
Scientific Reports, 2023 We present a method that lowers the dose required for an electron ptychographic reconstruction by adaptively scanning the specimen, thereby providing the required spatial information redundancy in the regions of highest importance. The proposed method is
Marcel Schloz +6 more
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