Results 31 to 40 of about 1,119,291 (284)

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

open access: yesScientific 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   +2 more
doaj   +1 more source

Differential Methods in Inverse Scattering [PDF]

open access: yesSIAM 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.   +2 more
openaire   +1 more source

Two-dimensional dielectric object reconstruction based on improved U-Net model

open access: yes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
doaj   +1 more source

On the quantum inverse scattering problem [PDF]

open access: yesNuclear Physics B, 2000
A general method for solving the so-called quantum inverse scattering problem (namely the reconstruction of local quantum (field) operators in term of the quantum monodromy matrix satisfying a Yang-Baxter quadratic algebra governed by an R-matrix) for a large class of lattice quantum integrable models is given.
Maillet, Jean Michel   +2 more
openaire   +2 more sources

A second degree Newton method for an inverse scattering problem for a dielectric cylinder

open access: yesHittite 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
doaj   +1 more source

Scattering matrices with finite phase shift and the inverse scattering problem

open access: yes, 1996
The inverse scattering problem for the Schrodinger operator on the half-axis is studied. It is shown that this problem can be solved for the scattering matrices with arbitrary finite phase shift on the real axis if one admits potentials with long-range ...
Kurasov, Pavel, Kurasov, Pavel,
core   +2 more sources

Tunable fractional-order photonic differentiator based on the inverse Raman scattering in a silicon microring resonator [PDF]

open access: yes, 2015
A novel photonic fractional-order temporal differentiator is proposed based on the inverse Raman scattering (IRS) in the side-coupled silicon microring resonator.
Wu, Q   +19 more
core   +1 more source

Inverse spectral problem for Sturm-Liouville operator with higher order polynomials of spectral parameter in the boundary condition

open access: yesMiskolc 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
doaj   +1 more source

Electromagnetic scattering beyond the weak regime: Solving the problem of divergent Born perturbation series by Padé approximants [PDF]

open access: yesEPJ 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   +2 more
doaj   +1 more source

A note on an inverse scattering problem [PDF]

open access: yesProceedings 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

Home - About - Disclaimer - Privacy