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We establish a relationship between the electric magnetic dipole interaction force from a plane wave on a small magnetodielectric particle, the transport cross-section and the scattering asymmetry parameter, g. In this way, we predict…

材料科学 · 物理学 2015-06-04 R. Gomez-Medina , L. Froufe-Perez , M. Yepez , F. Scheffold , M. Nieto-Vesperinas , J. J. Saenz

The dependent scattering mechanism is known to have a significant impact on the radiative properties of random media containing discrete scatterers. Here we theoretically demonstrate the role of dependent scattering on the radiative…

介观与纳米尺度物理 · 物理学 2018-07-26 B. X. Wang , C. Y. Zhao

Dielectric photonics platform provides unique possibilities to control light scattering via utilizing high-index dielectric nanoantennas with peculiar optical signatures. Despite the intensively growing field of all-dielectric…

Optical properties of nonmagnetic structures that support artificial optically-induced magnetic responses have recently attracted surging interest. Here we conduct symmetry-dictated investigations into scattering properties of nonmagnetic…

光学 · 物理学 2020-04-02 Qingdong Yang , Weijin Chen , Yuntian Chen , Wei Liu

We develop a model based on a multiple scattering theory to describe the diffusion of polarized light in disordered media exhibiting short-range structural correlations. Starting from exact expressions of the average field and the field…

光学 · 物理学 2016-10-03 Kevin Vynck , Romain Pierrat , Rémi Carminati

We report on anomalous light transport in the strong scattering regime. Using low-coherence interferometry, we measure the reflection matrix of titanium dioxide powders, revealing crucial features of strong optical scattering which can not…

无序系统与神经网络 · 物理学 2022-08-11 Laura A. Cobus , Georg Maret , Alexandre Aubry

We present a semi-phenomenological treatment of light transmission through and its reflection from a ferrofluid, which we regard as a magnetically tunable system of dense random dielectric scatterers with weak dissipation. Partial spatial…

We achieve unidirectional forward superscattering by multilayered spherical cavities which are effectively radially anisotropic. It is demonstrated that, relying on the large effective anisotropy, the electric and magnetic dipoles can be…

光学 · 物理学 2016-05-31 Wei Liu , Bing Lei , Jianhua Shi , Haojun Hu

Scattering hinders the passage of light through random media and consequently limits the usefulness of optical techniques for sensing and imaging. Thus, methods for increasing the transmission of light through such random media are of…

光学 · 物理学 2014-06-23 Curtis Jin , Raj Rao Nadakuditi , Eric Michielssen , Stephen Rand

The nearly zero optical forward scattering and anti-dual conditions are usually associated to the so-called second Kerker condition, at which the electric and magnetic responses are phase-shifted by {\pi}. However, as we show, this…

Collective coherent scattering of laser light by an ensemble of polarizable point particles creates long range interactions, whose properties can be tailored by choice of injected laser powers, frequencies and polarizations. We use a…

量子物理 · 物理学 2015-06-17 Stefan Ostermann , Matthias Sonnleitner , Helmut Ritsch

We show that submicron Silicon spheres, whose polarizabilities are completely given by their two first Mie coefficients, are an excellent laboratory to test effects of both angle-suppressed and resonant differential scattering cross…

光学 · 物理学 2016-11-26 M. Nieto-Vesperinas , R. Gomez-Medina , J. J. Saenz

The atmospheres of planets (including Earth) and the outer layers of stars have often been treated in radiative transfer as plane-parallel media, instead of spherical shells, which can lead to inaccuracy, e.g. limb darkening. We give an…

统计力学 · 物理学 2009-11-11 Michael J. Caola

We introduce a non-exponential radiative framework that takes into account the local spatial correlation of scattering particles in a medium. Most previous works in graphics have ignored this, assuming uncorrelated media with a uniform,…

图形学 · 计算机科学 2018-05-14 Adrian Jarabo , Carlos Aliaga , Diego Gutierrez

Relating the electromagnetic scattering and absorption properties of an individual particle to the reflection and transmission coefficients of a two-dimensional material composed of these particles is a crucial concept that has driven both…

光学 · 物理学 2019-10-02 Romain Dezert , Philippe Richetti , Alexandre Baron

The brilliant white appearance of ultrathin scattering media with low refractive index contrast and the underlying radiative transport phenomena fascinate scientists for more than a decade. Examples of such systems are the scales of beetles…

光学 · 物理学 2022-03-04 Ruben Pompe , Dominic Meiers , Walter Pfeiffer , Georg von Freymann

Coherent backscattering is a multiple scattering interference effect which enhances the diffuse reflection off a disordered sample in the backward direction. Classically, the enhanced intensity is twice the average background under well…

In this work, we employed non-equilibrium Green's function to investigate the electron transport properties in the nanowire with the presence of scatterings. The scattering mechanism is modelled by using the concept of B\"uttiker probe. The…

介观与纳米尺度物理 · 物理学 2015-06-04 Jing Li , Tin Cheung Au Yeung , Chan Hin Kam

We study scattering phenomena such as the Kerker effect, superscattering, and scattering dark states in a subwavelength atomic antenna consisting of atoms with only electric dipole transitions. We show that an atomic antenna can exhibit…

光学 · 物理学 2021-01-04 Rasoul Alaee , Akbar Safari , Vahid Sandoghdar , Robert W. Boyd

X-ray radiation from neutron stars manifests itself in a variety of settings. Isolated pulsars, and magnetars both exhibit quasi-thermal persistent soft X-ray emission from their surfaces. Transient magnetospheric bursts from magnetars and…

高能天体物理现象 · 物理学 2025-02-21 Matthew G. Baring , Kun Hu , Hoa Dinh Thi
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