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The spectrum and the circular polarization of radiation from longitudinally polarized high-energy electrons in oriented single crystal are considered using the method which permits inseparable consideration of both the coherent and the…

高能物理 - 唯象学 · 物理学 2008-11-26 V. N. Baier , V. M. Katkov

The time-frequency integrals and the two-dimensional stationary phase method are applied to study the electromagnetic waves radiated by moving modulated sources in dispersive media. We show that such unified approach leads to explicit…

量子物理 · 物理学 2012-12-11 Gennadiy Burlak , Vladimir Rabinovich

The chapter contains a detailed presentation of the surface integral theory for modelling light diffraction by surface-relief diffraction gratings having a one-dimensional periodicity. Several different approaches are presented, leading…

光学 · 物理学 2014-06-03 Daniel Maystre , Evgeny Popov

We consider the coupling of the electromagnetic vacuum field with an oscillating perfectly-reflecting mirror in the nonrelativistic approximation. As a consequence of the frequency modulation associated to the motion of the mirror, low…

量子物理 · 物理学 2009-10-31 J. P. F. Mendonca , P. A. Maia Neto , F. I. Takakura

From the earth's crust to the human brain, remitted waves are used for sensing and imaging in a diverse range of diffusive media. Separating the source and detector increases the penetration depth of remitted light, yet rapidly decreases…

It is well known that by modifying the wavefront in a certain manner, the light intensity can be turned into a certain shape. However, all known light modulation techniques allow for limited light modifications only: focusing within a…

光学 · 物理学 2016-05-23 Tatiana Latychevskaia , Hans-Werner Fink

Reflectance bounds the frequency spectrum of illumination in the object appearance. In this paper, we introduce the first stochastic inverse rendering method, which recovers the attenuated frequency spectrum of an illumination jointly with…

计算机视觉与模式识别 · 计算机科学 2024-03-27 Yuto Enyo , Ko Nishino

A numerical modeling of the radiation emitted from a Luminescent dye embedded in a finite one-dimensional photonic crystal is presented. The Photonic Band Structure and the Photonic Density of States are derived using classical…

光学 · 物理学 2010-12-30 J. Manzanares-Martinez , P. Castro-Garay

Proposed, justified and tested measuring of beam spatial coherence, based on the detection of an interference visibility of the equal to intensity of beam replicas emerging under reflection from the rotated plane-parallel plate. The method…

光学 · 物理学 2015-10-20 E. A. Tikhonov , A. K. Lyamets

We compute the radiation pressure force on a moving mirror, in the nonrelativistic approximation, assuming the field to be at temperature $T.$ At high temperature, the force has a dissipative component proportional to the mirror velocity,…

高能物理 - 理论 · 物理学 2011-07-19 L. A. S. Machado , P. A. Maia Neto , C. Farina

We explore the problem of scattering in a medium modulated by a superluminal rectangular pulse, with the pulse modulation realized through transverse excitations. We solve this problem in the moving frame where the modulation appears purely…

经典物理 · 物理学 2018-03-21 Zoé-Lise Deck-Léger , Alireza Akbarzadeh , Christophe Caloz

The problem of radio wave reflection from an optically thick plane monotonous layer of magnetized plasma is considered at present work. The plasma electron density irregularities are described by spatial spectrum of an arbitrary form. The…

等离子体物理 · 物理学 2009-10-31 N. A. Zabotin , A. G. Bronin , G. A. Zhbankov

The reflections caused by common semi-reflectors, such as glass windows, can impact the performance of computer vision algorithms. State-of-the-art methods can remove reflections on synthetic data and in controlled scenarios. However, they…

计算机视觉与模式识别 · 计算机科学 2018-08-17 Patrick Wieschollek , Orazio Gallo , Jinwei Gu , Jan Kautz

We show theoretically that a directional dipole wave can be perfectly reflected by a single point-like oscillating dipole. Furthermore, we find that in the case of a strongly focused plane wave up to 85 % of the incident light can be…

量子物理 · 物理学 2009-11-13 G. Zumofen , N. M. Mojarad , V. Sandoghdar , M. Agio

Light is extensively used to steer the motion of atoms in free space, enabling cooling and trapping of matter waves through ponderomotive forces and Doppler-mediated photon scattering. Likewise, light interaction with free electrons has…

光学 · 物理学 2025-09-23 Kamran Akbari , Valerio Di Giulio , F. Javier García de Abajo

An experiment is proposed in which the overall path taken by a photon is indicated by the timing of a twin herald photon, while a particular segment of that path is determined by interference. The experiment is to be carried out in two…

量子物理 · 物理学 2018-05-15 Louis Sica

In recent times, we experimentally realized a quite efficient modeling of the shape of diffraction-resistant optical beams; thus generating for the first time the so-called Frozen Waves (FW), whose longitudinal intensity pattern can be…

The efficient design of continuous freeform surfaces, which transform a given source into an arbitrary target intensity, remains a challenging problem. A popular approach are ray-mapping methods, where first a ray mapping between the…

光学 · 物理学 2016-06-29 Christoph Bösel , Herbert Gross

Metasurfaces with unparalleled controllability of light have shown great potential to revolutionize conventional optics. However, they mainly work with free-space light input, which makes it difficult for full on-chip integration. On the…

光学 · 物理学 2022-11-11 Xuexue Guo , Yimin Ding , Xi Chen , Yao Duan , Xingjie Ni

The theory of radiation of twisted photons in elliptical multifrequency undulators is developed. It is shown that helical multifrequency undulators can be employed as a bright and versatile source of photons in the states that are…

加速器物理 · 物理学 2026-02-17 O. V. Bogdanov , S. V. Bragin , P. O. Kazinski , V. A. Ryakin