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We present a detailed study of the spatial self-organization of laser-driven atoms in an optical cavity, an effect predicted on the basis of numerical simulations [P. Domokos and H. Ritsch, Phys. Rev. Lett. 89, 253003 (2002)] and observed…

量子物理 · 物理学 2007-05-23 J. K. Asboth , P. Domokos , H. Ritsch , A. Vukics

Atoms can spontaneously form spatially-ordered structures in optical resonators when they are transversally driven by lasers. This occurs when the laser intensity exceeds a threshold value and results from the mechanical forces on the atoms…

量子物理 · 物理学 2014-11-19 Stefan Schütz , Giovanna Morigi

Active atomic clocks are predicted to provide far better short-term stability and robustness against thermal fluctuations than typical feedback-based optical atomic clocks. However, continuous laser operation using an ensemble of clock…

量子物理 · 物理学 2024-12-31 Anna Bychek , Laurin Ostermann , Helmut Ritsch

We consider a two-dimensional homogeneous ensemble of cold bosonic atoms loaded inside two optical cavities and pumped by a far-detuned external laser field. We examine the conditions for these atoms to self-organize into triangular and…

量子气体 · 物理学 2016-08-08 Shabnam Safaei , Christian Miniatura , Benoît Grémaud

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

Spontaneous pattern formation from a uniform state is a widely studied nonlinear optical phenomenon that shares similarities with non-equilibrium pattern formation in other scientific domains. Here we show how a single layer of atoms in an…

光学 · 物理学 2023-12-22 C. D. Parmee , J. Ruostekoski

The study of transverse optical pattern formation has been studied extensively in nonlinear optics, with a recent experimental interest in studying the phenomenon using cold atoms, which can undergo real-space self-organization. Here, we…

原子物理 · 物理学 2016-08-15 Bonnie L. Schmittberger , Daniel J. Gauthier

Optomechanical pattern forming instabilities in a cloud of cold atoms lead to self-organized spatial structures of light and atoms. Here, we consider the optomechanical self-structuring of a cold atomic cloud in the presence of a phase…

原子物理 · 物理学 2020-05-13 Giuseppe Baio , Gordon R. M. Robb , Alison M. Yao , Gian-Luca Oppo

Atoms in transversely pumped optical cavities "self-organize" by forming a density wave and emitting superradiantly into the cavity mode(s). For a single-mode cavity, the properties of this self-organization transition are well…

量子气体 · 物理学 2017-12-27 Sarang Gopalakrishnan , Yulia E. Shchadilova , Eugene Demler

Atom-field entanglement is shown to play a crucial role for the onset of spatial self-organization of ultracold atoms in an optical lattice within a high-Q cavity. Like particles on a seesaw, the atoms feel a different potential depending…

量子物理 · 物理学 2007-05-23 Christoph Maschler , Helmut Ritsch , Andras Vukics , Peter Domokos

We investigate how laser-driven, cooperative dipole-dipole interactions in weakly trapped atomic arrays give rise to self-organized configurations. Starting from an analytically tractable two-emitter system, we identify the possible…

The collective dynamics of mobile scatterers and light in optical resonators generates complex behaviour. For strong transverse illumination a phase transition from homogeneous to crystalline particle order appears. In contrast, a gas…

量子物理 · 物理学 2015-06-23 S. Ostermann , T. Grießer , H. Ritsch

Pattern formation of atoms in high-finesse optical resonators results from the mechanical forces of light associated with superradiant scattering into the cavity mode. It occurs when the laser intensity exceeds a threshold value, such that…

量子物理 · 物理学 2015-12-15 Stefan Schütz , Simon B. Jäger , Giovanna Morigi

Polariton condensation can be regarded as a self-organization phenomenon, where phase ordering is established among particles in the system. In such condensed systems, further ordering can possibly occur in the particle density…

量子气体 · 物理学 2015-03-19 F. Manni , K. G. Lagoudakis , T. C. H. Liew , R. André , B. Deveaud-Plédran

We present an experimental and theoretical investigation of spontaneous pattern formation in the transverse section of a single retro-reflected laser beam passing through a cloud of cold Rubidium atoms. In contrast to previously…

原子物理 · 物理学 2015-06-23 A. Camara , R. Kaiser , G. Labeyrie , W. J. Firth , G. -L. Oppo , G. R. M. Robb , A. S. Arnold , T. Ackemann

We study the propagation of light beams through optical media with competing nonlocal nonlinearities. We demonstrate that the nonlocality of competing focusing and defocusing nonlinearities gives rise to self-organization and stationary…

斑图形成与孤子 · 物理学 2016-04-27 F. Maucher , T. Pohl , S. Skupin , W. Krolikowski

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…

Optical nonlinearities typically require macroscopic media, thereby making their implementation at the quantum level an outstanding challenge. Here we demonstrate a nonlinearity for one atom enclosed by two highly reflecting mirrors. We…

量子物理 · 物理学 2008-05-13 I. Schuster , A. Kubanek , A. Fuhrmanek , T. Puppe , P. W. H. Pinkse , K. Murr , G. Rempe

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 use finite-difference time-domain modelling to investigate plasma generation induced by multi-photon absorption of intense laser light in dielectrics with tiny inhomogenities. Plasma generation is found to be strongly amplified around…

光学 · 物理学 2014-10-17 Robert Buschlinger , Stefan Nolte , Ulf Peschel
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