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Light-Gradient-Induced Spiral Wave Drifts in a Belousov--Zhabotinsky Reaction |
| ZHANG Hui-Jie1,2;WANG Peng-Ye1;ZHAO Ying-Ying2 |
| 1Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
2Department of Chemistry, Jilin University, Changchun 130023 |
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| Cite this article: |
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ZHANG Hui-Jie, WANG Peng-Ye, ZHAO Ying-Ying 2005 Chin. Phys. Lett. 22 287-290 |
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Abstract The dynamic behaviour of spiral tip in the light-sensitive Belousov--Zhabotinsky reaction under the influence of an externally applied light gradient was experimentally studied. The gradient causes different drifts for different spiral patterns. The centre of the spiral wave moved toward the region of lower light intensity. The direction of an additional perpendicular drift depended on the chirality of the spiral wave. The dependences of the drifting angle and the drifting velocity on light gradient have been measured.
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| Keywords:
05.45.-a
82.40.Ck
89.75.Kd
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Published: 01 February 2005
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| PACS: |
05.45.-a
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(Nonlinear dynamics and chaos)
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82.40.Ck
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(Pattern formation in reactions with diffusion, flow and heat transfer)
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89.75.Kd
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(Patterns)
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