Wave Initiation through Spatiotemporally Controllable Perturbations

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

doi:10.1103/PhysRevLett.90.148301

Wave Initiation through Spatiotemporally Controllable Perturbations

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

Chemical & Biological Engineering

Research output: Contribution to journal › Article › peer-review

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 language	English (US)
Pages (from-to)	4
Number of pages	1
Journal	Physical review letters
Volume	90
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.90.148301
State	Published - 2003

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.90.148301

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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.",

author = "J. Wolff and Papathanasiou, {A. G.} and Rotermund, {H. H.} and G. Ertl and Katsoulakis, {M. A.} and X. Li and Kevrekidis, {I. G.}",

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doi = "10.1103/PhysRevLett.90.148301",

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AU - Wolff, J.

AU - Papathanasiou, A. G.

AU - Rotermund, H. H.

AU - Ertl, G.

AU - Katsoulakis, M. A.

AU - Li, X.

AU - Kevrekidis, I. G.

PY - 2003

Y1 - 2003

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AB - 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.

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JO - Physical Review Letters

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Wave Initiation through Spatiotemporally Controllable Perturbations

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