Results 11 to 20 of about 29,331 (339)
Self-wavefront interference using transverse splitting holography
Results in Physics, 2023 Manufacturing diffractive lenses with a high Numerical Aperture (NA) is a challenging task due to limitations in lithography methods and the inverse relation between the width and the radius of the zones.
Andrei-ioan Bleahu +8 more
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STUDY ON HIGH RESOLUTION MEMBRANE-BASED DIFFRACTIVE OPTICAL IMAGING ON GEOSTATIONARY ORBIT [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Diffractive optical imaging technology provides a new way to realize high resolution earth observation on geostationary orbit. There are a lot of benefits to use the membrane-based diffractive optical element in ultra-large aperture optical imaging ...
J. Jiao +7 more
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Quantitative phase imaging (QPI) through random diffusers using a diffractive optical network
Light: Advanced Manufacturing, 2023 Quantitative phase imaging (QPI) is a label-free computational imaging technique used in various fields, including biology and medical research. Modern QPI systems typically rely on digital processing using iterative algorithms for phase retrieval and ...
Yuhang Li +4 more
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Micromachines, 2023 Diffractive optical elements are gradually replacing some conventional optical elements and becoming a key component of optical systems due to their unique phase modulation function.
Yidi Zheng +12 more
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Dichroic coherent diffractive imaging [PDF]
Proceedings of the National Academy of Sciences, 2011 Understanding electronic structure at the nanoscale is crucial to untangling fundamental physics puzzles such as phase separation and emergent behavior in complex magnetic oxides. Probes with the ability to see beyond surfaces on nanometer length and subpicosecond time scales can greatly enhance our understanding of these systems and will undoubtedly ...
Ashish, Tripathi +7 more
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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
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Bessel Beams in Ophthalmology: A Review
Micromachines, 2023 The achievable resolution of a conventional imaging system is inevitably limited due to diffraction. Dealing with precise imaging in scattering media, such as in the case of biomedical imaging, is even more difficult owing to the weak signal-to-noise ...
C. S. Suchand Sandeep +3 more
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Learning Wavefront Coding for Extended Depth of Field Imaging [PDF]
, 2020 Depth of field is an important factor of imaging systems that highly affects the quality of the acquired spatial information. Extended depth of field (EDoF) imaging is a challenging ill-posed problem and has been extensively addressed in the literature ...
Akpinar, Ugur +4 more
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A theoretical framework for general design of two-materials composed diffractive fresnel lens
Scientific Reports, 2021 Near 100% of diffractive efficiency for diffractive optical elements (DOEs) is one of the most required optical performances in broadband imaging applications.
Ming-Yen Lin +3 more
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A Color Restoration Algorithm for Diffractive Optical Images of Membrane Camera
Sensors, 2021 In order to verify the technology of the membrane diffractive imaging system for Chinese next generation geo-stationary earth orbit (GEO) satellite, a series of ground experiments have been carried out using a membrane optical camera with 80 mm aperture (
Yanlei Du +3 more
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