Dynamics of laser-induced electroconvection pulses

N. C. Giebink; E. R. Johnson; S. R. Saucedo; E. W. Miles; K. K. Vardanyan; D. R. Spiegel; C. C. Allen

doi:10.1103/PhysRevE.69.066303

Dynamics of laser-induced electroconvection pulses

N. C. Giebink
, E. R. Johnson
, S. R. Saucedo
, E. W. Miles
, K. K. Vardanyan
, D. R. Spiegel
, C. C. Allen

Electrical Engineering

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

4 Scopus citations

Abstract

A new method was proposed for the production of a localized supercritical electroconvection (EC) pulses. An experiment was performed in which a weak continuous-wave absorbed laser beam with a diameter comparable to the pattern wavelength. Systematic measurements of the sample-voltage dependence of the pulse amplitude, spatial extent, and frequency show a saturation or decrease when the control parameter approaches ∼0.3. It is observed that the advection creates a negative feedback between the pulse size and the efficiency of heat transport.

Original language	English (US)
Article number	066303
Pages (from-to)	066303-1-066303-10
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	69
Issue number	6 2
DOIs	https://doi.org/10.1103/PhysRevE.69.066303
State	Published - Jun 2004

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Condensed Matter Physics
Statistical and Nonlinear Physics
Mathematical Physics

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10.1103/PhysRevE.69.066303

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title = "Dynamics of laser-induced electroconvection pulses",

abstract = "A new method was proposed for the production of a localized supercritical electroconvection (EC) pulses. An experiment was performed in which a weak continuous-wave absorbed laser beam with a diameter comparable to the pattern wavelength. Systematic measurements of the sample-voltage dependence of the pulse amplitude, spatial extent, and frequency show a saturation or decrease when the control parameter approaches ∼0.3. It is observed that the advection creates a negative feedback between the pulse size and the efficiency of heat transport.",

author = "Giebink, \{N. C.\} and Johnson, \{E. R.\} and Saucedo, \{S. R.\} and Miles, \{E. W.\} and Vardanyan, \{K. K.\} and Spiegel, \{D. R.\} and Allen, \{C. C.\}",

note = "Funding Information: We wish to express our gratitude to Guenter Ahlers, Eberhard Bodenschatz, Stephen Morris, and Hermann Riecke for their insightful ideas on these experiments, which were of great value in this work. We are grateful to Ingo Rehberg for sharing data on the temperature dependence of the EC threshold voltage. We also thank Bill Collins, Michael Dennin, Albert Libchaber, Benjamin Plummer, and Harry Swinney for useful discussions and emails. We thank Truc Bui-Thanh, Landon Nemoto, and Alan Puchot for their help. Finally, we are grateful to Trinity University and specifically to President John Brazil for encouragement and support. This work was supported in part by a grant from the National Science Foundation (Research at Undergraduate Institutions Grant No. 0111143). Acknowledgment is also made to the donors of the Petroleum Research Fund, administered by the American Chemical Society, for partial support of this research.",

year = "2004",

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doi = "10.1103/PhysRevE.69.066303",

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AU - Giebink, N. C.

AU - Johnson, E. R.

AU - Saucedo, S. R.

AU - Miles, E. W.

AU - Vardanyan, K. K.

AU - Spiegel, D. R.

AU - Allen, C. C.

N1 - Funding Information: We wish to express our gratitude to Guenter Ahlers, Eberhard Bodenschatz, Stephen Morris, and Hermann Riecke for their insightful ideas on these experiments, which were of great value in this work. We are grateful to Ingo Rehberg for sharing data on the temperature dependence of the EC threshold voltage. We also thank Bill Collins, Michael Dennin, Albert Libchaber, Benjamin Plummer, and Harry Swinney for useful discussions and emails. We thank Truc Bui-Thanh, Landon Nemoto, and Alan Puchot for their help. Finally, we are grateful to Trinity University and specifically to President John Brazil for encouragement and support. This work was supported in part by a grant from the National Science Foundation (Research at Undergraduate Institutions Grant No. 0111143). Acknowledgment is also made to the donors of the Petroleum Research Fund, administered by the American Chemical Society, for partial support of this research.

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AB - A new method was proposed for the production of a localized supercritical electroconvection (EC) pulses. An experiment was performed in which a weak continuous-wave absorbed laser beam with a diameter comparable to the pattern wavelength. Systematic measurements of the sample-voltage dependence of the pulse amplitude, spatial extent, and frequency show a saturation or decrease when the control parameter approaches ∼0.3. It is observed that the advection creates a negative feedback between the pulse size and the efficiency of heat transport.

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Dynamics of laser-induced electroconvection pulses

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