Results 1 to 10 of about 29,331 (339)

In situ coherent diffractive imaging [PDF]

Nature Communications, 2018
Coherent diffractive imaging (CDI) allows for high resolution imaging without lenses. Here, Lo et al. develop in situ CDI with real-time imaging and a corresponding low-dose requirement, with expected applications in the physical and life sciences.
Yuan Hung Lo, Lingrong Zhao, Marcus Gallagher-Jones, Arjun Rana, Jared J. Lodico, Weikun Xiao, B. C. Regan, Jianwei Miao   +7 more
doaj   +8 more sources

On incoherent diffractive imaging. [PDF]

Acta Crystallogr A Found Adv, 2021
Incoherent diffractive imaging (IDI) promises structural analysis with atomic resolution based on intensity interferometry of pulsed X-ray fluorescence emission. However, its experimental realization is still pending and a comprehensive theory of contrast formation has not been established to date.
Lohse LM, Vassholz M, Salditt T.
europepmc   +6 more sources

Snapshot multispectral imaging using a diffractive optical network

Light: Science & Applications, 2023
Multispectral imaging has been used for numerous applications in e.g., environmental monitoring, aerospace, defense, and biomedicine. Here, we present a diffractive optical network-based multispectral imaging system trained using deep learning to create ...
Deniz Mengu, Anika Tabassum, Mona Jarrahi, Aydogan Ozcan   +3 more
doaj   +2 more sources

Dynamic diffraction artefacts in Bragg coherent diffractive imaging. [PDF]

J Appl Crystallogr, 2018
This article reports a theoretical study on the reconstruction artefacts in Bragg coherent diffractive imaging caused by dynamical diffraction effects. It is shown that, unlike the absorption and refraction effects that can be corrected after reconstruction, dynamical diffraction effects have profound impacts on both the amplitude and the phase of the ...
Hu W, Huang X, Yan H.
europepmc   +4 more sources

Single-shot 3D coherent diffractive imaging of core-shell nanoparticles with elemental specificity. [PDF]

Sci Rep, 2018
We report 3D coherent diffractive imaging (CDI) of Au/Pd core-shell nanoparticles with 6.1 nm spatial resolution with elemental specificity. We measured single-shot diffraction patterns of the nanoparticles using intense x-ray free electron laser pulses.
Pryor A, Rana A, Xu R, Rodriguez JA, Yang Y, Gallagher-Jones M, Jiang H, Kanhaiya K, Nathanson M, Park J, Kim S, Kim S, Nam D, Yue Y, Fan J, Sun Z, Zhang B, Gardner DF, Dias CSB, Joti Y, Hatsui T, Kameshima T, Inubushi Y, Tono K, Lee JY, Yabashi M, Song C, Ishikawa T, Kapteyn HC, Murnane MM, Heinz H, Miao J.   +31 more
europepmc   +5 more sources

Broadband unidirectional visible imaging using wafer-scale nano-fabrication of multi-layer diffractive optical processors [PDF]

Light: Science & Applications
We present a broadband and polarization-insensitive unidirectional imager that operates at the visible part of the spectrum, where image formation occurs in one direction, while in the opposite direction, it is blocked.
Che-Yung Shen, Paolo Batoni, Xilin Yang, Jingxi Li, Kun Liao, Jared Stack, Jeff Gardner, Kevin Welch, Aydogan Ozcan   +8 more
doaj   +2 more sources

Universal point spread function engineering for 3D optical information processing [PDF]

Light: Science & Applications
Point spread function (PSF) engineering has been pivotal in the remarkable progress made in high-resolution imaging in the last decades. However, the diversity in PSF structures attainable through existing engineering methods is limited.
Md Sadman Sakib Rahman, Aydogan Ozcan
doaj   +2 more sources

Implementation of a Large-Area Diffractive Lens Using Multiple Sub-Aperture Diffractive Lenses and Computational Reconstruction

Photonics, 2022
Direct imaging systems that create an image of an object directly on the sensor in a single step are prone to many constraints, as a perfect image is required to be recorded within this step.
Shivasubramanian Gopinath, Praveen Periysamy Angamuthu, Tauno Kahro, Andrei Bleahu, Francis Gracy Arockiaraj, Daniel Smith, Soon Hock Ng, Saulius Juodkazis, Kaupo Kukli, Aile Tamm, Vijayakumar Anand   +10 more
doaj   +1 more source

Coherent Diffractive Imaging with Diffractive Optics

Physical Review Letters, 2022
Physical review letters 128(22), 223901 (2022).
Jakob Soltau, Markus Osterhoff, Tim Salditt   +2 more
openaire   +4 more sources

Enhancement of Partially Coherent Diffractive Images Using Generative Adversarial Network

AI, 2022
We present a deep learning-based generative model for the enhancement of partially coherent diffractive images. In lensless coherent diffractive imaging, a highly coherent X-ray illumination is required to image an object at high resolution.
Jong Woo Kim, Marc Messerschmidt, William S. Graves   +2 more
doaj   +1 more source