This article is cited in 5 papers

Interaction of laser radiation with matter. Laser plasma

Condensation of ablation plumes in the irradiation of metals by high-intensity nanosecond laser pulses at atmospheric pressure

K. V. Kozadaev

A. N. Sevchenko Research Institute of Applied Physical Problems, Belarusian State University, Minsk

Abstract: The Anisimov–Luk'yanchuk model is adapted for describing the condensation of vapour-plasma plumes produced in the irradiation of metal targets by high-intensity (10⁸–10¹⁰ W cm^-2) nanosecond (10–100 ns) pulses at atmospheric pressure. The resultant data suggest that the initial stages of the development of metal ablation plumes correspond with a high degree of accuracy to the Zel'dovich–Raizer theory of dynamic condensation; however, at the stage of the ablation plume decay, the liquid-droplet phase is formed primarily by coalescence of 'nuclei'.

Keywords: laser ablation, nanosecond laser pulse, Zel'dovich–Raizer theory, dynamic condensation, metal nanoparticles.

Received: 10.03.2015

 English version: Quantum Electronics, 2016, 46:1, 16–22

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