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Proceedings Paper

Dynamics of clusters under intense laser irradiation
Author(s): Tara Desai
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Paper Abstract

We report an experimental study on the X-ray emission from aluminum clusters (diameter approximately 0.4micrometers ), carbon (diameter approximately 0.5 micrometers ) and gold (diameter approximately 1.25 micrometers ). They were ingrained in a polymer and irradiated with 1.06 micrometers laser, 10 ns (FWHM) at an intensity approximately 1012 W/cm2. Aluminum and carbon clusters show a different spectra compared to their respective bulk material whereas gold clusters evolve towards bulk gold. Experimental data are analyzed on the basis of cluster dimension, laser wavelength and pulse duration. PIC simulations are performed to study the behavior of clusters at higher intensity I ≥ 1017 W/cm2 for different size of the clusters irradiated at different laser wavelengths. Results indicate the dependence of cluster dynamics on cluster size and incident laser wavelength.

Paper Details

Date Published: 13 September 2002
PDF: 7 pages
Proc. SPIE 4760, High-Power Laser Ablation IV, (13 September 2002); doi: 10.1117/12.482065
Show Author Affiliations
Tara Desai, INFM (Italy) and Univ. degli Studi di Milano-Bicocca (Italy)


Published in SPIE Proceedings Vol. 4760:
High-Power Laser Ablation IV
Claude R. Phipps, Editor(s)

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