Results 31 to 40 of about 9,836,724 (331)

Transmission Structured Illumination Microscopy for Quantitative Phase and Scattering Imaging

open access: yesFrontiers in Physics, 2021
In this paper, we demonstrate a digital micromirror device (DMD) based optical microscopic apparatus for quantitative differential phase contrast (qDIC) imaging, coherent structured illumination microscopy (SIM), and dual-modality (scattering/fluorescent)
Kai Wen   +5 more
doaj   +1 more source

New Interferometric Phase Unwrapping Method Based on Energy Minimization From Contextual Modeling

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Two-dimensional phase unwrapping is a critical processing procedure of synthetic aperture radar interferometry. This operation becomes even more difficult in the presence of noise.
Ayoub Tlili   +3 more
doaj   +1 more source

Reversible lateral optical force on phase-gradient metasurfaces for full control of metavehicles.

open access: yesOptics Letters, 2022
Photonics is currently undergoing an era of miniaturization thanks in part to two-dimensional (2D) optical metasurfaces. Their ability to sculpt and redirect optical momentum can give rise to an optical force, which acts orthogonally to the direction of ...
Tianyue Li   +8 more
semanticscholar   +1 more source

Phase Separation Dynamics in a Concentration Gradient [PDF]

open access: yesEurophysics Letters (EPL), 1994
11 pages, REVTEX.3.0 ...
Lacasta Palacio, Ana MarĂ­a   +2 more
openaire   +3 more sources

Convolutional Phase Retrieval via Gradient Descent [PDF]

open access: yesIEEE Transactions on Information Theory, 2020
64 pages , 9 figures, appeared in NeurIPS 2017. Accepted at IEEE Transactions on Information Theory.
Qing Qu 0001   +3 more
openaire   +2 more sources

Magnetized Domain Walls in the Deconfined Sakai-Sugimoto Model at Finite Baryon Density [PDF]

open access: yes, 2011
The magnetized pure pion gradient ($\mathcal{5}\phi$) phase in the deconfined Sakai-Sugimoto model is explored at zero and finite temperature. We found that the temperature has very small effects on the phase.
CV Johnson   +19 more
core   +2 more sources

A two-phase gradient method for quadratic programming problems with a single linear constraint and bounds on the variables [PDF]

open access: yes, 2018
We propose a gradient-based method for quadratic programming problems with a single linear constraint and bounds on the variables. Inspired by the GPCG algorithm for bound-constrained convex quadratic programming [J.J. Mor\'e and G.
Barlow, Jesse   +3 more
core   +2 more sources

A strategy to introduce multi-gradient structures into iron by explosive shock wave processing

open access: yesJournal of Materials Research and Technology, 2023
A strategy combining shock-induced phase transition, twins, and dislocations to produce a multi-gradient structure in Fe is designed and proposed by the explosive processing method. A specific emulsion explosive is designed to introduce gradient pressure
Jianian Hu   +5 more
doaj   +1 more source

Wavefront image sensor chip [PDF]

open access: yes, 2010
We report the implementation of an image sensor chip, termed wavefront image sensor chip (WIS), that can measure both intensity/amplitude and phase front variations of a light wave separately and quantitatively.
Cui, Xiquan   +3 more
core   +1 more source

Boundary Effects in the Gradient Theory of Phase Transitions [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2012
We consider the van der Waals' free energy functional, with a scaling small parameter epsilon, in the plane domain given by the first quadrant, and inhomogeneous Dirichlet boundary conditions. The boundary data are chosen in such a way that the interface between the pure phases tends to be horizontal and is pinned at some point on the y-axis which ...
BERTINI MALGARINI, Lorenzo   +2 more
openaire   +3 more sources

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