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Proceedings Paper

Nanocluster formation within the vapor plume produced by nanosecond laser ablation: effect of the initial density and pressure distributions
Author(s): Y. Kuwata; Boris S. Luk'yanchuk; Takashi Yabe
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Paper Abstract

The condensation of vapor within the expanding plume produced by ns-laser ablation is discussed in the framework of Zeldovich and Raizer theory of condensation. The spherical plume expansion is described by numerical solution of hydrodynamic equations by CIP method. This permits to analyze the role of initial distributions in density and pressure onto the size distribution function for nanoclusters. With parabolic distributions (for the plume expansion into vacuum), calculations reproduce the same results, as those found with particular solutions of gas-dynamic equations. When initial distributions deviate from parabolic, the size distribution function varies. For the rectangular plume, size distribution function for nanoclusters demonstrates to maximums. The similar effect can be found due to the ambient gas influence.

Paper Details

Date Published: 16 August 2000
PDF: 11 pages
Proc. SPIE 4065, High-Power Laser Ablation III, (16 August 2000); doi: 10.1117/12.407397
Show Author Affiliations
Y. Kuwata, Tokyo Institute of Technology (Japan)
Boris S. Luk'yanchuk, General Physics Institute (Singapore)
Takashi Yabe, Tokyo Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 4065:
High-Power Laser Ablation III
Claude R. Phipps, Editor(s)

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