Results 31 to 40 of about 2,682,308 (349)

X-ray propagation through a kinoform lens

open access: yesJournal of Synchrotron Radiation, 2022
Combining geometric ray tracing and wave optics propagation, a new simulation model named LWF is established to calculate the full coherent X-ray propagation through a kinoform lens. The LWF model is used to analyze the X-ray propagation through long and
Weihong Sun   +6 more
doaj   +1 more source

Numerical simulation of the performance of a spaceborne Offner imaging hyperspectrometer in the wave optics approximation

open access: yesКомпьютерная оптика, 2022
We propose a method for calculating the point scattering function (PSF) of an Offner imaging hyperspectrometer with a diffraction grating in the approximation of scalar diffraction theory.
A.A. Rastorguev   +2 more
doaj   +1 more source

The classical limit of quantum optics: not what it seems at first sight

open access: yesNew Journal of Physics, 2013
What light is and how to describe it has always been a central subject in physics. As our understanding has increased, so have our theories changed: geometrical optics, wave optics and quantum optics are increasingly sophisticated descriptions, each ...
Yakir Aharonov   +5 more
doaj   +1 more source

Recent advances in metasurface design and quantum optics applications with machine learning, physics-informed neural networks, and topology optimization methods [PDF]

open access: yesLight: Science & Applications, 2023
As a two-dimensional planar material with low depth profile, a metasurface can generate non-classical phase distributions for the transmitted and reflected electromagnetic waves at its interface. Thus, it offers more flexibility to control the wave front.
Wenye Ji   +6 more
semanticscholar   +1 more source

Realistic wave-optics simulation of X-ray phase-contrast imaging at a human scale. [PDF]

open access: yesSci Rep, 2015
X-ray phase-contrast imaging (XPCI) can dramatically improve soft tissue contrast in X-ray medical imaging. Despite worldwide efforts to develop novel XPCI systems, a numerical framework to rigorously predict the performance of a clinical XPCI system at ...
Sung Y   +5 more
europepmc   +2 more sources

Editorial: Guided-Wave Optics

open access: yesApplied Sciences, 2017
Guided waves represent a vast class of phenomena in which the propagation of collective excitations in various media is steered in required directions by fixed (or, sometimes, reconfigurable) conduits [...]
Boris A. Malomed
doaj   +1 more source

Depth-of-field effects in wiggler radiation sources: Geometrical versus wave optics

open access: yesPhysical Review Accelerators and Beams, 2017
A detailed analysis is carried out of the optical properties of synchrotron radiation emitted by multipole wigglers, concentrating on the effective source size and brightness and the so-called “depth of field” effects, concerning which there has been ...
Richard P. Walker
doaj   +1 more source

A fast and lightweight tool for partially coherent beamline simulations in fourth-generation storage rings based on coherent mode decomposition

open access: yesJournal of Synchrotron Radiation, 2022
A new algorithm to perform coherent mode decomposition of undulator radiation is proposed. It is based on separating the horizontal and vertical directions, reducing the problem by working with one-dimension wavefronts.
Manuel Sanchez del Rio   +4 more
doaj   +1 more source

Direct manipulation of wave amplitude and phase through inverse design of isotropic media

open access: yesNew Journal of Physics, 2017
In this article we propose a new design methodology allowing us to control both amplitude and phase of electromagnetic waves from a cylindrical incident wave.
Y Liu   +4 more
doaj   +1 more source

Quantum Mechanical and Optical Analogies in Surface Gravity Water Waves

open access: yesFluids, 2019
We present the theoretical models and review the most recent results of a class of experiments in the field of surface gravity waves. These experiments serve as demonstration of an analogy to a broad variety of phenomena in optics and quantum mechanics ...
Georgi Gary Rozenman   +3 more
doaj   +1 more source

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