Results 21 to 30 of about 37,243 (262)

Gamma-ray vortices from nonlinear inverse Thomson scattering of circularly polarized light

Scientific Reports, 2017
Inverse Thomson scattering is a well-known radiation process that produces high-energy photons both in nature and in the laboratory. Nonlinear inverse Thomson scattering occurring inside an intense light field is a process which generates higher harmonic
Yoshitaka Taira, Takehito Hayakawa, Masahiro Katoh   +2 more
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A Conditioned Probabilistic Method for the Solution of the Inverse Acoustic Scattering Problem

Mathematics, 2022
In the present work, a novel stochastic method has been developed and investigated in order to face the time-reduced inverse scattering problem, governed by the Helmholtz equation, outside connected or disconnected obstacles supporting boundary ...
Antonios Charalambopoulos, Leonidas Gergidis, Eleftheria Vassilopoulou   +2 more
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Inverse Scattering in a Multipath Environment

Advanced Electromagnetics, 2016
In this contribution an inverse scattering problem is ad- dressed in a multipath environment. In particular, multipath is created by known ”extra” point-like scatterers (passive elements) expressely deployed between the scene under in- vestigation and ...
A. Cuccaro, R. Solimene
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Two-dimensional dielectric object reconstruction based on improved U-Net model

上海师范大学学报. 自然科学版, 2023
An electromagnetic inverse scattering algorithm was proposed based on the improved U-Net(M-Net) model in this paper. M-Net model was mainly composed of multi-scale input layer, U-type convolutional neural network (CNN) and multi-scale mean output layer ...
JIN Ming, YANG Chunxia
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Inverse spectral problem for Sturm-Liouville operator with higher order polynomials of spectral parameter in the boundary condition

Miskolc Mathematical Notes
This paper is concerned with an inverse scattering problem for Sturm-Liouville operator with polynomials of spectral parameter in boundary condition. We provide scattering data and present some spectral properties.
Aynur Çöl, Khanlar Mamedov
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Electromagnetic scattering beyond the weak regime: Solving the problem of divergent Born perturbation series by Padé approximants [PDF]

EPJ Web of Conferences, 2020
Electromagnetic scattering is the main phenomenon behind all optical measurement methods where one aims to retrieve the shape or physical properties of an unknown object by measuring how it scatters an incident optical field.
van der Sijs Thomas, El Gawhary Omar, Urbach Paul   +2 more
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A second degree Newton method for an inverse scattering problem for a dielectric cylinder

Hittite Journal of Science and Engineering, 2015
The inverse obstacle scattering problem we are interested is to reconstruct the image of an infinitely long homogeneous dielectric cylinder from the far field pattern for scattering of a time-harmonic E-polarized electromagnetic plane wave. We extend the
Ahmet Altundag
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Reinforced Inverse Scattering

SIAM Journal on Scientific Computing
Inverse wave scattering aims at determining the properties of an object using data on how the object scatters incoming waves. In order to collect information, sensors are put in different locations to send and receive waves from each other. The choice of sensor positions and incident wave frequencies determines the reconstruction quality of scatterer ...
Hanyang Jiang, Yuehaw Khoo, Haizhao Yang
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A note on an inverse scattering problem [PDF]

Proceedings of the American Mathematical Society, 1979
Here it is shown that the inverse scattering problem of a plane wave incident off a spherically symmetric medium is an improperly posed problem and that if a continuous index of refraction exists, then it is unique.
Ahner, John F., Kahane, Charles S.
openaire   +2 more sources

Differential Methods in Inverse Scattering [PDF]

SIAM Journal on Applied Mathematics, 1985
This paper discusses a new set of differential methods for solving the inverse scattering problem associated to the propagation of waves in an inhomogeneous medium. By writing the medium equations in the form of a two-component system describing the interaction of rightward and leftward propagating waves, the causality of the propagation phenomena is ...
Bruckstein, Alfred M., Levy, Bernard C., Kailath, Thomas   +2 more
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