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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 12 — Jun. 6, 2011
  • pp: 11242–11255

Nonlinear atom-field dynamics in high-Q cavities: from a BEC to a thermal gas

Tobias Grießer and Helmut Ritsch  »View Author Affiliations


Optics Express, Vol. 19, Issue 12, pp. 11242-11255 (2011)
http://dx.doi.org/10.1364/OE.19.011242


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Abstract

A cold gas of polarizable particles moving in the optical potential of a standing wave high finesse optical resonator acts as a dynamic refractive index. For a sufficiently strong cavity pump the optical forces generated by the intra cavity field perturb the particles phase space distribution, which shifts the optical resonance frequency and induces a nonlinear optical response. By help of the corresponding Vlasov equation we predict that beyond the known phenomenon of optical bi-stability one finds regions in parameter space, where no stable stationary solution exists. The atom field dynamics then exhibits oscillatory solutions converging to stable limit cycles of the system. The linearized analytical predictions agree well with corresponding numerical solutions of the full time dependent equations and first experimental observation in both cases.

© 2011 OSA

OCIS Codes
(190.1450) Nonlinear optics : Bistability
(270.3100) Quantum optics : Instabilities and chaos

ToC Category:
Quantum Optics

History
Original Manuscript: January 19, 2011
Revised Manuscript: March 14, 2011
Manuscript Accepted: March 14, 2011
Published: May 25, 2011

Citation
Tobias Grießer and Helmut Ritsch, "Nonlinear atom-field dynamics in high-Q cavities: from a BEC to a thermal gas," Opt. Express 19, 11242-11255 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-12-11242


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