Wave Initiation through Spatiotemporally Controllable Perturbations

J. Wolff, A. G. Papathanasiou, H. H. Rotermund, G. Ertl, M. A. Katsoulakis, X. Li, I. G. Kevrekidis

Research output: Contribution to journalArticle

Abstract

We study the initiation of pulses and fronts in a two-dimensional catalytic reaction-diffusion system: CO oxidation on Pt(110). Using a computer-controlled mobile focused laser beam, we impart various patterns (in space and time) of localized temperature “kicks” to the surface. We explore, and also rationalize through modeling, the cooperativity of such individually subcritical perturbations in both the excitable and the bistable regime.

Original languageEnglish (US)
Number of pages1
JournalPhysical review letters
Volume90
Issue number14
DOIs
StatePublished - Jan 1 2003

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Wolff, J., Papathanasiou, A. G., Rotermund, H. H., Ertl, G., Katsoulakis, M. A., Li, X., & Kevrekidis, I. G. (2003). Wave Initiation through Spatiotemporally Controllable Perturbations. Physical review letters, 90(14). https://doi.org/10.1103/PhysRevLett.90.148301