Optical diffraction radiation from a dielectric and a metal nanowire excited by a modulated electron beam
Sign Up to like & getrecommendations! Published in 2019 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-018-1741-4
Abstract: The optical diffraction radiation that accompanies the motion of a modulated beam of electrons near a dielectric and silver nanowire scatterers is investigated in the two-dimensional formulation. Our goal is to compute the field in… read more here.
Keywords: electron beam; optical diffraction; beam; diffraction radiation ... See more keywords
Label-free tomographic imaging of nanodiamonds in living cells
Sign Up to like & getrecommendations! Published in 2021 at "Diamond and Related Materials"
DOI: 10.1016/j.diamond.2021.108517
Abstract: Abstract Nanodiamonds have acknowledged growing attention due to their facile functionalization, stable fluorescence, low toxicity, and decent biocompatibility. However, despite advances applications of nanodiamonds in drug delivery, catalysis and bio-sensing, laser irradiation still limits long-time… read more here.
Keywords: optical diffraction; living cells; microscopy; diffraction tomography ... See more keywords
Deep learning beats the optical diffraction limit
Sign Up to like & getrecommendations! Published in 2019 at "Nature Nanotechnology"
DOI: 10.1038/s41565-018-0357-y
Abstract: A deep learning approach enables up to nine bits of information to be encoded per diffraction-limited area. read more here.
Keywords: learning; learning beats; deep learning; beats optical ... See more keywords
Topological reconstruction of a stretched transparent surface relief grating via an optical diffraction pattern.
Sign Up to like & getrecommendations! Published in 2021 at "Applied optics"
DOI: 10.1364/ao.424845
Abstract: The optical characterization of transparent and stretchable patterned surfaces replicated from the fabrication of quasicrystal structures on azopolymer thin films is presented. The complexity of the quasicrystal surface fabrication is obtained by superimposed multiple light… read more here.
Keywords: surface; optical diffraction; topological reconstruction; via optical ... See more keywords
Magnetically tunable optical diffraction gratings based on a ferromagnetic liquid crystal.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.008900
Abstract: Transmission optical diffraction gratings composed of periodic slices of a ferromagnetic liquid crystal and a conventional photoresist polymer are demonstrated. Dependence of diffraction efficiencies of various diffraction orders on an in-plane external magnetic field is… read more here.
Keywords: magnetically tunable; ferromagnetic liquid; optical diffraction; liquid crystal ... See more keywords
Reconstructing complex refractive-index of multiply-scattering media by use of iterative optical diffraction tomography.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.380309
Abstract: Conventional optical diffraction tomography (ODT) techniques fail in the presence of multiple scattering, and the problem becomes even more challenging when the medium is also lossy. Iterative ODT (iODT), which was shown recently to be… read more here.
Keywords: multiply scattering; optical diffraction; diffraction tomography; complex refractive ... See more keywords
Single image dehazing algorithm based on optical diffraction deep neural networks.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.458610
Abstract: Single image dehazing is a challenging task because of the hue and brightness distortion problems due to the atmospheric scattering. These problems limit the perceptual fidelity, as well as information integrity, of a given image.… read more here.
Keywords: optical diffraction; neural networks; image dehazing; single image ... See more keywords
Iterative optical diffraction tomography with embedded regularization.
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DOI: 10.1364/oe.466226
Abstract: Total-variation regularization is applied at each iteration of an iterative framework for optical diffraction tomography. Numerical and experimental tests are performed using various highly scattering objects, and significant improvement in reconstruction SNR are demonstrated. read more here.
Keywords: optical diffraction; diffraction tomography; regularization; iterative optical ... See more keywords
Optical diffraction tomography of second-order nonlinear structures in weak scattering media: theoretical analysis and experimental consideration.
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DOI: 10.1364/oe.472637
Abstract: Computed tomography (CT) allows for high lateral and axial resolution imaging of the endogenous structure of matter thanks to its large spatial frequency support and has been realized in X-ray and linear optical domain known… read more here.
Keywords: optical diffraction; order nonlinear; tomography; second order ... See more keywords