Optical pattern formation with a two-level nonlinearity
Camara, A. and Kaiser, R. and Labeyrie, G. and Firth, W. J. and Oppo, G.-L. and Robb, G. R. M. and Arnold, A. S. and Ackemann, T. (2015) Optical pattern formation with a two-level nonlinearity. Physical Review A, 92 (1). 013820. ISSN 1050-2947 (https://doi.org/10.1103/PhysRevA.92.013820)
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Abstract
We present an experimental and theoretical investigation of spontaneous pattern formation in the transverse section of a single retroreflected laser beam passing through a cloud of cold rubidium atoms. In contrast to previously investigated systems, the nonlinearity at work here is that of a two-level atom, which realizes the paradigmatic situation considered in many theoretical studies of optical pattern formation. In particular, we are able to observe the disappearance of the patterns at high intensity due to the intrinsic saturable character of two-level atomic transitions.
ORCID iDs
Camara, A., Kaiser, R., Labeyrie, G., Firth, W. J., Oppo, G.-L.



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Item type: Article ID code: 54086 Dates: DateEvent13 July 2015PublishedNotes: Date of Accepted: 20/06/2015 Keywords: atom lasers, laser beams, atomic transition, cold rubidium atoms, high intensity, optical pattern formation, spontaneous pattern formation, theoretical investigations, theoretical study, transverse section, Optics. Light, Atomic and Molecular Physics, and Optics Subjects: Science > Physics > Optics. Light Department: University of Strathclyde > University of Strathclyde
Faculty of Science > PhysicsDepositing user: Pure Administrator Date deposited: 27 Aug 2015 09:44 Last modified: 22 Feb 2022 01:18 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/54086