Results 11 to 20 of about 67,845 (296)

Selective excitation of subwavelength atomic clouds

Physical Review Research, 2021
A dense cloud of atoms with randomly changing positions exhibits coherent and incoherent scattering. We show that an atomic cloud of subwavelength dimensions can be modeled as a single scatterer where both coherent and incoherent components of the ...
Rasoul Alaee, Akbar Safari, Robert W. Boyd   +2 more
doaj   +1 more source

The small slope approximation method applied to a two dimensional dielectric-topological insulator material rough interface

Alexandria Engineering Journal, 2023
In this paper, the first order perturbation theory (PT) and the small slope approximation (SSA) are employed to analyze the scattering behavior of a two dimensional dielectric-topological insulator (TI) rough interface with Gaussian distribution.
Muhammad Sajid Hanif, Muhammad Arshad Fiaz, Ayman A. Althuwayb   +2 more
doaj   +1 more source

Weak Incoherent Optical Signal Amplification Based on Modulation Instability for Imaging Through Fog

IEEE Photonics Journal, 2022
Weak optical signal processing based on nonlinear effects offers new approaches for imaging through scattering media. A novel incoherent optical signal amplification method based on spatial modulation instability is proposed for imaging through fog.
Zhaolu Wang, Yongbin Zhang, Nan Huang, Yuan Liao, Changchang Zhang, Xiaohui Gao, Hongjun Liu   +6 more
doaj   +1 more source

Bistatic Radar Scattering from Non-Gaussian Height Distributed Rough Surfaces

Remote Sensing, 2022
In modeling a rough surface, it is common to assume a Gaussian height distribution. This hypothesis cannot describe an eventual asymmetry between crests and troughs of natural surfaces.
Ying Yang, Kun-Shan Chen, Suyun Wang
doaj   +1 more source

Coherent and incoherent multiple scattering [PDF]

Physical Review A, 2014
We compare two different models of transport of light in a disordered system with a spherical Gaussian distribution of scatterers. A coupled dipole model, keeping into account all interference effects, is compared to an incoherent model, using a random walk of particles.
Chabé, Julien, Rouabah, Mohamed-Taha, Bellando, Louis, Bienaimé, Tom, Piovella, Nicola, Bachelard, Romain, Kaiser, Robin   +6 more
openaire   +4 more sources

Advancing interpretation of incoherent scattering in ice-penetrating radar data used for ice core site selection [PDF]

The Cryosphere
Below the coherent layering in ice-penetrating radar data collected in Antarctica and Greenland, incoherent scattering is common. This scattering is signal, not noise, and has the potential to inform our understanding of the structure and dynamics of the
E. L. Mutter, N. Holschuh
doaj   +1 more source

Glauber theory of initial- and final-state interactions in (p,2p) scattering [PDF]

, 1996
We develop the Glauber theory description of initial- and final-state interactions (IFSI) in quasielastic A(p,2p) scattering. We study the IFSI-distortion effects both for the inclusive and exclusive conditions.
A Bianconi, A Kohama, A. A. Usmani, AS Carroll, B. G. Zakharov, BZ Kopeliovich, C Lechanoine-LeLuc, GD Alkhazov, H Vries de, J Ralston, J. Speth, JW Orden Van, N. N. Nikolaev, O. Benhar, S Heppelmann, S. Fantoni, SJ Brodsky, SJ Brodsky, VN Gribov   +18 more
core   +2 more sources

Anderson Localization of Matter Waves in 3D Anisotropic Disordered Potentials [PDF]

, 2014
Using a cutoff-free formulation of the coherent transport theory, we show that the interference terms at the origin of localization strongly affect the transport anisotropy.
Piraud, Marie, Sanchez-Palencia, Laurent, Van Tiggelen, Bart   +2 more
core   +2 more sources

Single-shot mid-infrared incoherent holography using Lucy-Richardson-Rosen algorithm

Opto-Electronic Science, 2022
In recent years, there has been a significant transformation in the field of incoherent imaging with new possibilities of compressing three-dimensional (3D) information into a two-dimensional intensity distribution without two-beam interference (TBI ...
Vijayakumar Anand, Molong Han, Jovan Maksimovic, Soon Hock Ng, Tomas Katkus, Annaleise Klein, Keith Bambery, Mark J. Tobin, Jitraporn Vongsvivut, Saulius Juodkazis   +9 more
doaj   +1 more source

Quantum-electrodynamical parametric instability in the incoherent photon gas [PDF]

, 2013
We present a theory for the quantum-electrodynamical (QED) parametric scattering instability of an intense photon pulse in an incoherent radiation background.
Eliasson, Bengt, Shukla, Padma, Wang, Yunliang   +2 more
core   +1 more source