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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 30 — Oct. 20, 2003
  • pp: 5978–5985

Computational fluid-dynamic model of laser-induced breakdown in air

Ivan G. Dors and Christian G. Parigger  »View Author Affiliations


Applied Optics, Vol. 42, Issue 30, pp. 5978-5985 (2003)
http://dx.doi.org/10.1364/AO.42.005978


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Abstract

Temperature and pressure profiles are computed by the use of a two-dimensional, axially symmetric, time-accurate computational fluid-dynamic model for nominal 10-ns optical breakdown laser pulses. The computational model includes a kinetics mechanism that implements plasma equilibrium kinetics in ionized regions and nonequilibrium, multistep, finite-rate reactions in nonionized regions. Fluid-physics phenomena following laser-induced breakdown are recorded with high-speed shadowgraph techniques. The predicted fluid phenomena are shown by direct comparison with experimental records to agree with the flow patterns that are characteristic of laser spark decay.

© 2003 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(140.3440) Lasers and laser optics : Laser-induced breakdown
(140.3450) Lasers and laser optics : Laser-induced chemistry
(190.1900) Nonlinear optics : Diagnostic applications of nonlinear optics
(280.1740) Remote sensing and sensors : Combustion diagnostics
(350.5400) Other areas of optics : Plasmas

Citation
Ivan G. Dors and Christian G. Parigger, "Computational Fluid-Dynamic Model of Laser-Induced Breakdown in Air," Appl. Opt. 42, 5978-5985 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-30-5978

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