This work is aimed at an analysis of the influence on the efficiency of nanoparticle production of a cavitation bubble (CB), which forms during the laser ablation process in high-fluence regime. The CB is produced on an Au metal target immersed in water by 1064 nm ps Nd:YAG laser pulses at different fluences. Its time–space evolution is monitored by a shadowgraphic set-up, while the Au nanoparticles production rate is tagged by the growth of the plasmon resonance, which is detected by measuring shot-by-shot the UV-Vis absorbance. We analyze the dependence of bubble size on the experimental parameters. Our results appear of interest to enhance the nanoparticle production efficiency in a liquid medium. 1 Introduction

Effect of picosecond laser induced cavitation bubbles generated on Au targets in a nanoparticle production set-up

TIBERI, MARCO;SIMONELLI, ANDREINO;MARSILI, PAOLO;GIAMMANCO, FRANCESCO;
2013

Abstract

This work is aimed at an analysis of the influence on the efficiency of nanoparticle production of a cavitation bubble (CB), which forms during the laser ablation process in high-fluence regime. The CB is produced on an Au metal target immersed in water by 1064 nm ps Nd:YAG laser pulses at different fluences. Its time–space evolution is monitored by a shadowgraphic set-up, while the Au nanoparticles production rate is tagged by the growth of the plasmon resonance, which is detected by measuring shot-by-shot the UV-Vis absorbance. We analyze the dependence of bubble size on the experimental parameters. Our results appear of interest to enhance the nanoparticle production efficiency in a liquid medium. 1 Introduction
Tiberi, Marco; Simonelli, Andreino; G., Cristoforetti; Marsili, Paolo; Giammanco, Francesco; E., Giorgetti
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/705863
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