Projects per year
Abstract
Self-organization in driven dissipative systems is an active field of research with implications in physics, chemistry, and biology. When applying a red-detuned retroreflected laser beam to a large cloud of cold atoms, we observe the spontaneous formation of 2D structures in the transverse plane corresponding to high contrast spatial modulations of both light field and atomic spins. By applying a weak magnetic field, we explore the rich resulting phase space and identify specific phases associated with both dipolar and quadrupolar terms of the atomic magnetic moment. In particular, we demonstrate spontaneous structures in optically induced ground state coherences representing magnetic quadrupoles. Our results illustrate the wealth of behavior exhibited by laser-driven atomic media with complex level structure under optical feedback.
Original language | English |
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Pages (from-to) | 1322-1328 |
Number of pages | 7 |
Journal | Optica |
Volume | 5 |
Issue number | 10 |
DOIs | |
Publication status | Published - 18 Oct 2018 |
Keywords
- nonlinear optics
- transverse effects in
- instabilities and chaos
- coherent optical effects
- spatial solitons
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Projects
- 3 Finished
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Collective effects and optomechanics in ultra-cold matter (ColOpt) (H2020 MCSA ETN)
Ackemann, T., Griffin, P., Oppo, G., Robb, G. & Yao, A.
European Commission - Horizon 2020
1/01/17 → 31/12/20
Project: Research
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Cooperative effects and nonlinear optics in dense ensembles of cold atoms
Ackemann, T., Arnold, A., Firth, W., Oppo, G. & Robb, G.
1/06/11 → 31/05/14
Project: Research
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SELF-ORGANIZATION OF COLD MATTER DUE TO OPTO-MECHANICAL COUPLING
Ackemann, T., Arnold, A. & Robb, G.
1/01/11 → 30/04/15
Project: Research
Datasets
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Data for: "Magnetic Phase Diagram of Light-mediated Spin Structuring in Cold Atoms"
Labeyrie, G. (Creator), Krešić, I. (Contributor), Robb, G. (Creator), Oppo, G. (Contributor), Kaiser, R. (Creator) & Ackemann, T. (Creator), figshare, 15 Dec 2022
DOI: 10.6084/m9.figshare.c.4152497.v1
Dataset