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Collective coherent light scattering by polarizable particles creates surprisingly strong, long range inter-particle forces originating from interference of the light scattered by different particles. While for monochromatic laser beams…

光学 · 物理学 2016-11-23 Daniela Holzmann , Helmut Ritsch

We study point-like polarizable particles confined in a 1D very elongated trap within the evanescent field of an optical nano-fiber or nano-structure. When illuminated transversely by coherent light, collective light scattering into…

光学 · 物理学 2015-06-22 Daniela Holzmann , Matthias Sonnleitner , Helmut Ritsch

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 present a theoretical treatment of light scattering by an ensemble of N dipoles, taking into account recurrent multiple scattering. We study the intrinsic optical properties of collective dipolar systems without specifying a particular…

量子物理 · 物理学 2020-04-21 Antoine Canaguier-Durand , Astrid Lambrecht , Serge Reynaud

The interaction of light with an atomic sample containing a large number of particles gives rise to many collective (or cooperative) effects, such as multiple scattering, superradiance and subradiance, even if the atomic density is low and…

原子物理 · 物理学 2017-05-31 William Guerin , Robin Kaiser

Resonant dipole-dipole interaction modifies the energy and decay rate of electronic excitations for finite one dimensional chains of ultracold atoms in an optical lattice. We show that collective excited states of the atomic chain can be…

量子物理 · 物理学 2012-12-07 Hashem Zoubi , Helmut Ritsch

Collective off resonant scattering of coherent light by a cold gas induces long-range interactions via interference of light scattered by different particles. In a 1D configuration these interactions grow particularly strong for particles…

量子物理 · 物理学 2015-06-15 Tobias Grießer , Helmut Ritsch

We study, both theoretically and experimentally, the scattering properties of optical dipole-mode vector solitons - radially asymmetric composite self-trapped optical beams. First, we analyze the soliton collisions in an isotropic…

Rayleigh scattering is usually considered to be the elastic scattering of photons from sub-wavelength physical objects, such as small particles or molecules. Here, we present the spectroscopic study of the scattering properties of molecules…

We predict concurrent selforganisation and cooling of multispecies ensembles of laser-illuminated polarisable particles within a high-Q cavity mode. Resonant collective scattering of laser light into the cavity creates optical potentials…

量子物理 · 物理学 2012-11-29 Tobias Grießer , Wolfgang Niedenzu , Helmut Ritsch

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 solve self-consistently the coupled equations of motion for trapped particles and the field of a one-dimensional optical lattice. Optomechanical coupling creates long-range interaction between the particles, whose nature depends…

其他凝聚态物理 · 物理学 2007-06-13 J. K. Asboth , H. Ritsch , P. Domokos

Counter-propagating light fields have the ability to create self-organized one-dimensional optically bound arrays of microscopic particles, where the light fields adapt to the particle locations and vice versa. We develop a theoretical…

光学 · 物理学 2009-11-10 D. McGloin , A. E. Carruthers , K. Dholakia , E. M. Wright

Cooperative scattering has been the subject of intense research in the last years. In this article, we discuss the concept of cooperative scattering from a broad perspective. We briefly review the various collective effects that occur when…

原子物理 · 物理学 2016-09-05 W Guerin , M. -T Rouabah , R Kaiser

Under the action of light-by-light scattering, light beams show collective behaviors in vacuum. For instance, in the case of two counterpropagating laser beams with specific initial helicity, the polarization of each beam oscillates…

光学 · 物理学 2018-03-07 Fabio Briscese

The optical binding of many particles has great potential to achieve the wide-area formation of a "crystal" of small materials. Unlike conventional optical binding, where the whole assembly of targeted particles is irradiated with light, if…

光学 · 物理学 2023-02-28 Yukihiro Tao , Tomohiro Yokoyama , Hajime Ishihara

We investigate, based on the coupled dipole model, collective properties of dense Sr ensembles trapped in a three-dimensional (3D) optical lattice in the presence of dipole-dipole interactions induced on the…

原子物理 · 物理学 2023-08-08 Shengnan Zhang , Sandhya Ganesh , Balsant Shivanand Tiwari , Kai Bongs , Yeshpal Singh

We show, through analytical theory and rigorous numerical calculations, that optical binding can organize a collection of particles into stable one-dimensional lattice. This lattice, as well as other optically-bound structures, are shown to…

其他凝聚态物理 · 物理学 2009-11-11 Jack Ng , C. T. Chan

Quantum theoretical treatment of coherent forward scattering of light in a polarized atomic ensemble with an arbitrary angular momentum is developed. We consider coherent forward scattering of a weak radiation field interacting with a…

量子物理 · 物理学 2007-05-23 D. V. Kupriyanov , O. S. Mishina , I. M. Sokolov , B. Julsgaard , E. S. Polzik

Mobile light scatterers in a high-Q optical cavity transversely illuminated by laser light close to a cavity resonance form ordered patterns, which maximize light scattering into the cavity and induce optical self-trapping. We show that a…

量子物理 · 物理学 2014-07-25 Valentin Torggler , Helmut Ritsch
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