Projects per year
The rapidly developing field of optomechanics aims at the com- bined control of optical and mechanical modes1–3. In cold atoms, the spontaneous emergence of spatial structures due to opto- mechanical back-action has been observed in one dimension in optical cavities3–8 or highly anisotropic samples9. Extensions to higher dimensions that aim to exploit multimode configurations have been suggested theoretically10–16. Here, we describe a simple experiment with many spatial degrees of freedom, in which two continuous symmetries—rotation and translation in the plane orthogonal to a pump beam axis—are spontaneously broken. We observe the simultaneous long- range spatial structuring (with hexagonal symmetry) of the density of a cold atomic cloud and of the pump optical field, with adjustable length scale. Being based on coherent phenom- ena (diffraction and the dipole force), this scheme can poten- tially be extended to quantum degenerate gases.
|Number of pages||5|
|Early online date||23 Mar 2014|
|Publication status||Published - 1 Apr 2014|
- optical cavities
- quantum degenerate gases
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- Physics - Senior Lecturer
- Ocean, Air and Space
- 3 Finished
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
SELF-ORGANIZATION OF COLD MATTER DUE TO OPTO-MECHANICAL COUPLING
Ackemann, T., Arnold, A. & Robb, G.
1/01/11 → 30/04/15
Modelling Condensed Matter Systems with Quantum Gases in Optical Cavities
EPSRC (Engineering and Physical Sciences Research Council)
1/10/10 → 31/10/14
- 90 Citations
- 1 Article
Optomechanical self-structuring of cold atomsLabeyrie, G. G., Kaiser, R., Tesio, E., Monteiro Gomes, P., Oppo, G-L., Firth, W., Robb, G., Arnold, A. & Ackemann, T., 1 Dec 2014, In: Optics and Photonics News. 25, 12, p. 50 1 p.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile