Results 21 to 30 of about 4,040 (262)
Applied Sciences, 2022 Diffractive optical elements (DOEs) are difficult to apply in natural scenes imaging covering the visible bandwidth-spectral due to their strong chromatic aberration and the decrease in diffraction efficiency.
Kai Liu +8 more
doaj +1 more source
Wide Field-of-View Imaging With Wavefront Coded Diffractive Photon Sieves
IEEE Photonics Journal, 2016 We report a demonstration of a wide field-of-view (FOV) imaging with a wavefront coded diffractive photon sieves. In conventional diffractive photon sieves (or other diffractive optical elements), clear imaging can only be achieved within near-zero FOV ...
Xiaonan Zhao +4 more
doaj +1 more source
Rapid sensing of hidden objects and defects using a single-pixel diffractive terahertz sensor
Nature Communications, 2023 Terahertz waves offer advantages for nondestructive detection of hidden objects/defects in materials, as they can penetrate most optically-opaque materials.
Jingxi Li +8 more
doaj +1 more source
Coherent imaging at the diffraction limit [PDF]
Journal of Synchrotron Radiation, 2014 X-ray ptychography, a scanning coherent diffractive imaging technique, holds promise for imaging with dose-limited resolution and sensitivity. If the foreseen increase of coherent flux by orders of magnitude can be matched by additional technological and analytical advances, ptychography may approach imaging speeds familiar from full-field methods ...
P. Thibault +2 more
openaire +4 more sources
IEEE Photonics Journal, 2019 Novel diffractive elements are presented to produce zero-order Bessel beams in the terahertz (THz) band. First, diffractive elements are designed as phase plates to change the direction of the incident Gaussian beam.
Liting Niu +7 more
doaj +1 more source
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
openaire +2 more sources
IEEE Photonics Journal, 2022 Considering that the driver and passengers need different display content in the vehicle display, we propose a dual-view and multi-content head-up display (HUD).
Zhenlv Lv, Juan Liu, Yan Yang
doaj +1 more source
Journal of the European Optical Society-Rapid Publications, 2023 Light sheet fluorescence microscope with single light sheet illumination enables rapid 3D imaging of living cells. In this paper we show the design, fabrication and characterization of a diffractive optical element producing several light sheets along a ...
Hofmann Meike +5 more
doaj +1 more source
Scientific Reports, 2022 Diffractive optical networks unify wave optics and deep learning to all-optically compute a given machine learning or computational imaging task as the light propagates from the input to the output plane. Here, we report the design of diffractive optical
Deniz Mengu +3 more
doaj +1 more source
Laser Application and Sparse Imaging Analysis of Diffractive Optical System
Leida xuebao, 2020 In recent years, the diffractive optical systems have developed rapidly. Diffractive devices such as binary optical device and membrane-based lens are equivalent to fixed phase shifters of microwave antennas.
LI Daojing +6 more
doaj +1 more source