Control of Turing structures by periodic illumination
Horvath AK, Dolnik M, Munuzuri AP, Zhabotinsky AM, Epstein IR
PHYSICAL REVIEW LETTERS
83 (15): 2950-2952 OCT 11 1999
Abstract:
Spatially uniform illumination of Turing structures in the chlorine
dioxide-iodine-malonic acid reaction-diffusion system affects the
pattern characteristics and, at larger intensities, eliminates them.
Periodic illumination is more effective than constant illumination
with the same average light intensity. We observe the fastest suppression
of pattern at a frequency of illumination equal to the
frequency of autonomous oscillations in the corresponding well-stirred
system. Numerical simulations demonstrate a similar
resonant behavior of periodically illuminated Turing structures.