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Analytical one-dimensional model to study the ultrasonic precursor generated by a laser

Abstract : We present an analytical one-dimensional model of the laser generation of ultrasound that takes the optical penetration effect into account. This model leads to a simple expression relating the full width at half maximum of the precursor to the product of the optical absorption coefficient by the longitudinal velocity, and establishes the conditions under which this expression is valid. The results of this model are compared to those provided by a more sophisticated semianalytical three-dimensional model and to experimental data obteined under various experimental conditions. The agremment is very good.
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Contributor : Franck Enguehard <>
Submitted on : Monday, March 14, 2016 - 10:10:39 AM
Last modification on : Friday, June 5, 2020 - 11:06:02 PM

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  • HAL Id : hal-01287454, version 1

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Marc Dubois, Franck Enguehard, Lionel Bertrand. Analytical one-dimensional model to study the ultrasonic precursor generated by a laser. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 1994, 50 (2), pp.1548-1551. ⟨hal-01287454⟩

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