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We study the scattering properties of optical dipole-mode vector solitons recently predicted theoretically and generated in a laboratory. We demonstrate that such a radially asymmetric composite self-trapped state resembles ``a molecule of…

斑图形成与孤子 · 物理学 2007-05-23 J. J. Garcia-Ripoll , V. M. Perez-Garcia , W. Krolikowski , Y. S. Kivshar

We study by numerical simulations the scattering of $s$-polarized light from a rough dielectric film deposited on the planar surface of a semi-infinite perfect conductor. The dielectric film is allowed to be either active or passive,…

无序系统与神经网络 · 物理学 2010-05-05 Ingve Simonsen , Tamara A. Leskova , Alexei A. Maradudin

We study rubber sliding friction on hard lubricated surfaces. We show that even if the hard surface appears smooth to the naked eye, it may exhibit short wavelength roughness, which may give the dominant contribution to rubber friction.…

软凝聚态物质 · 物理学 2008-05-08 M. Mofidi , B. Prakash , B. N. J. Persson , O. Albohl

A method is given for evaluating electromagnetic scattering by an irregular surface with spatially-varying impedance. This uses an operator expansion with respect to impedance variation and allows examination of its effects and the…

经典物理 · 物理学 2021-02-02 N. S. Basra , M. Spivack , O. Rath Spivack

By a computer simulation approach we study the scattering of $p$- or $s$-polarized light from a two-dimensional, randomly rough, perfectly conducting surface. The pair of coupled inhomogeneous integral equations for two independent…

光学 · 物理学 2010-05-04 Ingve Simonsen , Alexei A. Maradudin , Tamara A. Leskova

We report on measurements of absorption from applied ac fields in Anderson-localized indium-oxide films. The absorption shows a roll-off at a frequency that is much smaller than the electron-electron scattering rate measured at the same…

强关联电子 · 物理学 2012-04-17 Z. Ovadyahu

We report an experimental assessment of surface kinetic roughening properties that are anisotropic in space. Working for two specific instances of silicon surfaces irradiated by ion-beam sputtering under diverse conditions (with and without…

材料科学 · 物理学 2015-06-11 Edoardo Vivo , Matteo Nicoli , Martin Engler , Thomas Michely , Luis Vázquez , Rodolfo Cuerno

A previous paper [J. Phys. B: At. Mol. Opt. Phys. 50, 215302 (2017)] showed that partial wave analysis becomes applicable to nonrelativistic Coulomb scattering if wavepackets are used. The scattering geometry considered was special: that of…

量子物理 · 物理学 2020-02-07 Scott E. Hoffmann

We attempt to provide physical interpretations of light-induced desorption phenomena that have recently been observed for alkali atoms on glass surfaces of alkali vapor cells used in atomic physics experiments. We find that the observed…

其他凝聚态物理 · 物理学 2007-05-23 Atsushi Hatakeyama , Markus Wilde , Katsuyuki Fukutani

We study the light scattering by localized quasi planar excitations of a Cholesteric Liquid Crystal known as spherulites. Due to the anisotropic optical properties of the medium and the peculiar shape of the excitations, we quantitatively…

软凝聚态物质 · 物理学 2018-10-24 G. De Matteis , D. Delle Side , L. Martina , V. Turco

Utilizing the scales theory of electromagnetic theory, the anisotropic dielectric material is reconstructed into an isotropic medium. The analytic expressions of scattering field and the scattering breadth for an anisotropic material…

经典物理 · 物理学 2010-09-15 Y-L Li , J Li

We survey recent progress achieved in understanding the impact of inelastic processes on coherent backscattering of light from cold atoms that are saturated by a powerful laser field.

量子物理 · 物理学 2009-11-13 Vyacheslav Shatokhin , Thomas Wellens , Cord Müller , Andreas Buchleitner

Collective effects in atom-light interaction is of great importance for cold-atom-based quantum devices or fundamental studies on light transport in complex media. Here we discuss and compare three different approaches to light scattering…

原子物理 · 物理学 2019-07-12 Igor M. Sokolov , William Guerin

A scanning helium microscope typically utilises a thermal energy helium atom beam, with an energy and wavelength (<100 meV, ~0.05 nm) particularly sensitive to surface structure. An angular detector stage for a scanning helium microscope is…

介观与纳米尺度物理 · 物理学 2023-10-11 C. J. Hatchwell , M. Bergin , B. Carr , M. G. Barr , A. Fahy , P. C. Dastoor

Collision phenomena are ubiquitous and of importance in determining the microscopic structures and intermolecular interactions of atoms and molecules. The existing approaches are mostly based on atomic or molecular scatterings, which are…

量子物理 · 物理学 2022-03-01 Shiming Song , Min Jiang , Yushu Qin , Yu Tong , Wenzhe Zhang , Xi Qin , Ren-Bao Liu , Xinhua Peng

The magnetic dipole absorption cross section of a spherically shaped metal particle was calculated in terms of kinetic approach. The particle considered was placed in the field of a plane electromagnetic wave. The model of boundary…

介观与纳米尺度物理 · 物理学 2014-03-10 I. A. Kuznetsova , M. E. Lebedev , A. A. Yushkanov

The effect of phonon scattering by surface roughness on the thermal conductance in mesoscopic systems at low temperatures is calculated using full elasticity theory. The low frequency behavior of the scattering shows novel power law…

介观与纳米尺度物理 · 物理学 2009-11-07 D. H. Santamore , M. C. Cross

We study the light scattering properties of random ballistic aggregates constructed in Shen et al. (Paper I). Using the discrete-dipole-approximation, we compute the scattering phase function and linear polarization for random aggregates…

地球与行星天体物理 · 物理学 2011-02-11 Yue Shen , B. T. Draine , Eric T. Johnson

An accurate and efficient numerical simulation approach to electromagnetic wave scattering from two-dimensional, randomly rough, penetrable surfaces is presented. The use of the M\"uller equations and an impedance boundary condition for a…

光学 · 物理学 2010-06-03 Ingve Simonsen , Alexei A. Maradudin , Tamara A. Leskova

The atmospheric scattering of light has a significant influence on results of optical observations of air showers. It causes attenuation of direct light from the shower, but also contributes a delayed signal to the observed light. The…

天体物理仪器与方法 · 物理学 2013-09-10 Jan Pekala , Henryk Wilczynski