Publication: Compensation of curvature effects by illumination
Issued Date
2007-07-30
Resource Type
ISSN
03759601
Other identifier(s)
2-s2.0-34447540220
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Mahidol University
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SCOPUS
Bibliographic Citation
Physics Letters, Section A: General, Atomic and Solid State Physics. Vol.367, No.4-5 (2007), 311-315
Suggested Citation
On Uma Kheowan, Vasily A. Davydov, Niklas Manz, Stefan C. Müller Compensation of curvature effects by illumination. Physics Letters, Section A: General, Atomic and Solid State Physics. Vol.367, No.4-5 (2007), 311-315. doi:10.1016/j.physleta.2007.03.007 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/25127
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Title
Compensation of curvature effects by illumination
Abstract
Front deformation of initially planar excitation waves can be observed in nonplanar media or in spatially heterogeneously illuminated systems. The deformation of propagating reaction-diffusion waves in either of these systems has been investigated earlier separately. Here we present a combination of both heterogeneous systems, which can lead to a compensation of wave deformations. Our theoretical analysis of the evolution of propagating excitation waves, based on the framework of a kinematical theory, shows that the curvature effect can be compensated by illumination. Supporting experiments were performed with the light-sensitive Belousov-Zhabotinsky system. © 2007 Elsevier B.V. All rights reserved.