Department of Chemistry and Volen Center for Complex Systems, MS 015, Brandeis University, Waltham, MA 02454, USA.
Phys Chem Chem Phys. 2012 May 14;14(18):6577-83. doi: 10.1039/c2cp23779b. Epub 2012 Mar 28.
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.
我们使用光敏感的二氧化氯-碘-丙二酸反应-扩散系统研究图灵模式的波数锁定到二维“方形”空间强迫，该系统通过正交的亮带集投影到反应介质上实现。在广泛的强迫波长和幅度范围内，出现了各种共振结构，包括方形晶格和超晶格、一维条纹图案和斜矩形图案。使用包含二维空间周期性强迫的附加项的模型进行的数值模拟很好地再现了实验观察结果。
