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This paper describes how coherent backscattering is altered by an external magnetic field. In the theory presented, magneto-optical effects occur inside Mie scatterers embedded in a non-magnetic medium. Unlike previous theories based on…

介观与纳米尺度物理 · 物理学 2011-03-07 D. Lacoste , B. A. van Tiggelen

We propose a new formulation for atomic side mode dynamics from super-radiant light scattering of trapped atoms. A detailed analysis of the recently observed super-radiant light scattering from trapped bose gases [S. Inouye {\it et al.},…

凝聚态物理 · 物理学 2009-10-31 Ozgur E. Mustecaplioglu , L. You

Temporal coherence is a fundamental property of macroscopic quantum systems, such as lasers in optics and Bose-Einstein condensates in atomic gases and it is a crucial issue for interferometry applications with light or matter waves.…

量子气体 · 物理学 2015-05-13 Alice Sinatra , Yvan Castin , Emilia Witkowska

Thomson scattering of laser light is one of the most fundamental diagnostics of plasma density, temperature and magnetic fields. It relies on the assumption that the properties in the probed volume are homogeneous and constant during the…

等离子体物理 · 物理学 2016-04-29 P. M. Kozlowski , B. J. B. Crowley , D. O. Gericke , S. P. Regan , G. Gregori

The backward Compton scattering is a basic process at future higher energy photon colliders. To obtain a high probability of e->gamma conversion the density of laser photons in the conversion region should be so high that simultaneous…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Galynskii , E. Kuraev , M. Levchuk , V. Telnov

We show that an intensity speckle can be directly interpreted as the properties of incident light - amplitude, phase, polarization, and coherency over spatial positions. Revisiting the speckle-correlation scattering matrix (SSM) method [Lee…

光学 · 物理学 2019-08-07 KyeoReh Lee , YongKeun Park

Although coherent light is usually required for the self-organization of regular spatial patterns from optical beams, we show that peculiar light matter interaction can break this evidence. In the traditional method to record laser-induced…

This work focuses on the incoherent and coherent combination of pulsed laser beams, building on previous research [1] that addressed the combination of continuous-wave laser beams. For the pulsed combination, we have focused on the temporal…

光学 · 物理学 2024-12-05 Hocine Djellout

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 coherent multiple light scattering, or diffuse light propagation, in a disordered atomic medium, prepared at ultra-low temperatures, can be be effectively delayed in the presence of a strong control field initiating a…

量子物理 · 物理学 2016-04-27 L. V. Gerasimov , I. M. Sokolov , D. V. Kupriyanov , R. G. Olave , M. D. Havey

The effect of a random phase screen on laser beam wander in a turbulent atmosphere is studied theoretically. The method of photon distribution function is used to describe the photon kinetics of both weak and strong turbulence. By bringing…

量子物理 · 物理学 2009-11-13 G. P. Berman , A. A. Chumak , V. N. Gorshkov

The properties of coherence and polarization of light has been the subject of intense investigations and form the basis of many technological applications. These concepts which historically have been treated independently can now be…

量子物理 · 物理学 2021-01-07 Bertúlio de Lima Bernardo

We present a diagrammatic derivation of the coherent backscattering spectrum from two two-level atoms using the pump-probe approach, wherein the multiple scattering signal is deduced from single-atom responses, and provide a physical…

原子物理 · 物理学 2015-06-04 Vyacheslav Shatokhin , Thomas Wellens , Andreas Buchleitner

The scattering of a flying photon by a two-level system ultrastrongly coupled to a one-dimensional photonic waveguide is studied numerically. The photonic medium is modeled as an array of coupled cavities and the whole system is analyzed…

We study a "strongly-coupled" (SC) polariton system formed between the atom-like intersubband transitions in a semiconductor nanostructure and the THz optical modes that are localised at the edges of a gold aperture. The polaritons can be…

In front of a mirror, the radiation of weakly driven large disordered clouds presents an interference fringe in the backward direction, on top of an incoherent background. Although strongly driven atoms usually present little coherent…

原子物理 · 物理学 2017-12-06 N. Piovella , R. Celistrino Teixeira , R. Kaiser , Ph. W. Courteille , R. Bachelard

We study a two-level atom coupled to a Bose-Einstein condensate. We show that the rules governing the decoherence of mesoscopic superpositions involving different classical-like states of the condensate can be probed using this system. This…

量子物理 · 物理学 2011-08-02 H. T. Ng , S. Bose

Correlations between entangled photons are a key ingredient for testing fundamental aspects of quantum mechanics and an invaluable resource for quantum technologies. However, scattering from a dynamic medium typically scrambles and averages…

量子物理 · 物理学 2024-06-05 Mamoon Safadi , Ohad Lib , Ho-Chun Lin , Chia Wei Hsu , Arthur Goetschy , Yaron Bromberg

We consider the influence of a resonant control field on weak localization of light in ultracold atomic ensembles. Both steady-state and pulsed light excitation are considered. We show that the presence of a control field essentially…

量子物理 · 物理学 2015-05-27 I. M. Sokolov , D. V. Kupriyanov , M. D. Havey

We measure the decoherence of a spatially separated atomic superposition due to spontaneous photon scattering. We observe a qualitative change in decoherence versus separation as the number of scattered photons increases, and verify…

量子物理 · 物理学 2009-11-06 David A. Kokorowski , Alex D. Cronin , Tony D. Roberts , David E. Pritchard