Exotic patterns by the interplay of pattern formation and optical bistability

T. Ackemann, Yu A. Logvin, A. Heuer, W. Lange

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)


A circularly polarized enlarged beam with a cw dye laser traverses a sodium cell and is fed back by a plane mirror. Magnetization is created in the sodium ground state and brings about a nonlinearity in the system. In a suitably chosen, oblique external magnetic field the homogeneous solution shows a nonlinear resonance-like behavior. A linear stability analysis reveals that in wide parameter regimes both the low and high transmission branches are unstable against transverse perturbations. A weakly nonlinear analysis to second order predicts the appearance of negative hexagons on the high transmission branch and positive hexagons on the low transmission branch. Flower-like and star-shaped patterns were also observed in this region.

Original languageEnglish
Number of pages1
Publication statusPublished - 1 Jan 1996
EventProceedings of the 1996 European Quantum Electronics Conference, EQEC'96 - Hamburg, Ger
Duration: 8 Sep 199613 Sep 1996


ConferenceProceedings of the 1996 European Quantum Electronics Conference, EQEC'96
CityHamburg, Ger


  • solitons
  • cavity solitons
  • solitary waves
  • amplitude modulation
  • computer simulation
  • dynamics
  • electron energy levels
  • laser beams
  • light transmission
  • magnetic field effects
  • optical bistability

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