Dynamics of clusters under intense laser irradiation

Tara Desai

doi:10.1117/12.482065

13 September 2002 Dynamics of clusters under intense laser irradiation

Tara Desai

Proceedings Volume 4760, High-Power Laser Ablation IV; (2002) https://doi.org/10.1117/12.482065
Event: International Symposium on High-Power Laser Ablation 2002, 2002, Taos, New Mexico, United States

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.

Citation Download Citation

Tara Desai "Dynamics of clusters under intense laser irradiation", Proc. SPIE 4760, High-Power Laser Ablation IV, (13 September 2002); https://doi.org/10.1117/12.482065

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