Turing patterns in the chlorine dioxide-iodine-malonic acid reaction with square spatial periodic forcing

We use the photosensitive chlorine dioxide-iodine-malonic acid reaction-diffusion system to study wavenumber locking of Turing patterns to two-dimensional "square" spatial forcing, implemented as orthogonal sets of bright bands projected onto the reaction medium. Various resonant structures emerge in a broad range of forcing wavelengths and amplitudes, including square lattices and superlattices, one-dimensional stripe patterns and oblique rectangular patterns. Numerical simulations using a model that incorporates additive two-dimensional spatially periodic forcing reproduce well the experimental observations.

National Science Foundation

National Science Foundation [CHE-1012428]

U.S.Israel Binational Science Foundation

U.S.-Israel Binational Science Foundation

Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)

CAPES (Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior) [0337110]