Results 1 to 10 of about 4,040 (262)
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 +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
Multispectral Quantitative Phase Imaging Using a Diffractive Optical Network
Advanced Intelligent Systems, 2023 As a label‐free imaging technique, quantitative phase imaging (QPI) provides optical path length information of transparent specimens for various applications in biology, materials science, and engineering.
Che-Yung Shen +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
Compressive spectral imaging with diffractive lenses [PDF]
Optics Letters, 2019 Compressive spectral imaging enables to reconstruct the entire three-dimensional (3D) spectral cube from a few multiplexed images. Here, we develop a novel compressive spectral imaging technique using diffractive lenses. Our technique uses a coded aperture to spatially modulate the optical field from the scene and a diffractive lens such as a photon ...
Oğuzhan Fatih Kar, Figen S Öktem
exaly +5 more sources
Broadband unidirectional visible imaging using wafer-scale nano-fabrication of multi-layer diffractive optical processors [PDF]
Light: Science & ApplicationsWe 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 +8 more
doaj +2 more sources
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 +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 +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 +2 more
doaj +1 more source
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 +3 more
doaj +1 more source