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Effect of picosecond laser induced cavitation bubbles generated on Au targets in a nanoparticle production set-up |
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| Authors: | M Tiberi A Simonelli G Cristoforetti P Marsili F Giammanco E Giorgetti |
| Institution: | 1. Dept. of Physics “E. Fermi”, University of Pisa, Largo Bruno Pontecorvo 3, 56127, Pisa, Italy 2. ILIL, National Institute of Optics, Research Area of National Research Council, Via G. Moruzzi 1, 56124, Pisa, Italy 3. Institute of Complex Systems of the National Research Council ISC-CNR, Via Madonna del Piano 10, Sesto Fiorentino, FI, Italy |
| 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. |
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