Excitation fronts in a spatially modulated light-sensitive Belousov-Zhabotinsky system.

نویسندگان

  • N Manz
  • V A Davydov
  • V S Zykov
  • S C Müller
چکیده

The evolution of excitation wave fronts in a spatially modulated light-sensitive Belousov-Zhabotinsky system is investigated experimentally and theoretically. The excitation wave propagates in a thin, quasi-two-dimensional reaction layer, which is illuminated through a periodical gray level mask. The light-induced differences in excitability and velocity give rise to a temporal and spatial modulation of the initially flat fronts. The experimental front evolution is described in the framework of a kinematical theory as developed earlier for nonuniformly curved systems.

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عنوان ژورنال:
  • Physical review. E, Statistical, nonlinear, and soft matter physics

دوره 66 3 Pt 2A  شماره 

صفحات  -

تاریخ انتشار 2002