Nanocluster formation within the vapor plume produced by nanosecond laser ablation: effect of the initial density and pressure distributions

Y. Kuwata; Boris S. Luk'yanchuk; Takashi Yabe

doi:10.1117/12.407397

16 August 2000 Nanocluster formation within the vapor plume produced by nanosecond laser ablation: effect of the initial density and pressure distributions

Y. Kuwata, Boris S. Luk'yanchuk, Takashi Yabe

Author Affiliations +

Proceedings Volume 4065, High-Power Laser Ablation III; (2000) https://doi.org/10.1117/12.407397
Event: High-Power Laser Ablation, 2000, Santa Fe, NM, United States

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.

Citation Download Citation

Y. Kuwata, Boris S. Luk'yanchuk, and Takashi Yabe "Nanocluster formation within the vapor plume produced by nanosecond laser ablation: effect of the initial density and pressure distributions", Proc. SPIE 4065, High-Power Laser Ablation III, (16 August 2000); https://doi.org/10.1117/12.407397

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