Optical pattern formation with a two-level nonlinearity

A. Camara, R. Kaiser, G. Labeyrie, W. J. Firth, G.-L. Oppo, G. R. M. Robb, A. S. Arnold, T. Ackemann

Research output: Contribution to journalArticle

11 Citations (Scopus)

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.

LanguageEnglish
Article number013820
Number of pages5
JournalPhysical Review A
Volume92
Issue number1
DOIs
Publication statusPublished - 13 Jul 2015

Fingerprint

nonlinearity
rubidium
atoms
laser beams

Keywords

  • atom lasers
  • laser beams
  • atomic transition
  • cold rubidium atoms
  • high intensity
  • optical pattern formation
  • spontaneous pattern formation
  • theoretical investigations
  • theoretical study
  • transverse section

Cite this

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title = "Optical pattern formation with a two-level nonlinearity",
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.",
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Optical pattern formation with a two-level nonlinearity. / Camara, A.; Kaiser, R.; Labeyrie, G.; Firth, W. J.; Oppo, G.-L.; Robb, G. R. M.; Arnold, A. S.; Ackemann, T.

In: Physical Review A, Vol. 92, No. 1, 013820, 13.07.2015.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Optical pattern formation with a two-level nonlinearity

AU - Camara, A.

AU - Kaiser, R.

AU - Labeyrie, G.

AU - Firth, W. J.

AU - Oppo, G.-L.

AU - Robb, G. R. M.

AU - Arnold, A. S.

AU - Ackemann, T.

N1 - Date of Accepted: 20/06/2015

PY - 2015/7/13

Y1 - 2015/7/13

N2 - 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.

AB - 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.

KW - atom lasers

KW - laser beams

KW - atomic transition

KW - cold rubidium atoms

KW - high intensity

KW - optical pattern formation

KW - spontaneous pattern formation

KW - theoretical investigations

KW - theoretical study

KW - transverse section

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