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Optical bullets and double bullet complexes in dissipative systems.

J M Soto-Crespo1, Nail Akhmediev, Ph Grelu

  • 1Instituto de Optica, C.S.I.C., Serrano 121, 28006 Madrid, Spain.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|December 13, 2006
PubMed
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Optical light bullets and double bullet complexes can coexist in nonlinear dissipative systems. This coexistence is linked to system stability, leading to spontaneous transformations or controlled interactions forming complex structures.

Area of Science:

  • Nonlinear optics
  • Dissipative systems
  • Soliton dynamics

Background:

  • Optical light bullets are localized light fields in nonlinear media.
  • Dissipative systems involve energy exchange with the environment.
  • Understanding soliton interactions is crucial for optical technologies.

Purpose of the Study:

  • To investigate the coexistence of optical light bullets and double bullet complexes.
  • To analyze the stability and formation mechanisms of these structures.
  • To detail the internal dynamics of pulsating double bullet complexes.

Main Methods:

  • Numerical simulations of nonlinear dissipative systems.
  • Analysis of system parameter ranges for coexistence.
  • Phase-controlled interaction studies of single bullets.

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Main Results:

  • Coexistence of single bullets and double bullet complexes observed over a broad parameter range.
  • Marginal stability leads to spontaneous single-to-double bullet transformations.
  • Bistability allows controlled formation of clockwise and anticlockwise rotating double bullet complexes.
  • Pulsating dynamics, including oscillations in separation and shape, were detailed.

Conclusions:

  • Nonlinear dissipative systems support complex soliton structures like double bullet complexes.
  • System stability and initial conditions dictate the formation and dynamics of these solitons.
  • Phase-controlled interactions offer a method for creating specific complex optical structures.