Results 11 to 20 of about 1,452 (172)
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 +5 more
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Single-pixel ptychography [PDF]
Optics Letters, 2021 Ptychography is a predominant non-interferometric technique to image large complex fields but with quite a narrow working spectrum, because diffraction measurements require dense array detection with an ultra-high dynamic range. Here we report a single-pixel ptychography technique that realizes non-interferometric and non-scanning complex-field imaging
Meng Li +8 more
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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
Rosenfeld, Moriya +5 more
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Optica Advanced Photonics Congress 2022, 2022 We present a ptychography method to fuse data from two image sensors capturing different parts of the diffraction patterns and thereby extending the numerical aperture.
Kira Maathuis +2 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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Scientific Reports, 2015 AbstractWe report an experimental ptychography measurement performed in fly-scan mode. With a visible-light laser source, we demonstrate a 5-fold reduction of data acquisition time. By including multiple mutually incoherent modes into the incident illumination, high quality images were successfully reconstructed from blurry diffraction patterns.
Huang, X +7 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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Optofluidic ptychography on a chip
Lab on a Chip, 2021 We demonstrate high-resolution ptychographic imaging in a flow cytometer configuration. The device complements the miniaturization provided by microfluidics and allows the integration of ptychographic microscopy into various lab-on-a-chip systems.
Pengming Song +8 more
openaire +3 more sources