13 January 2017 Experimental investigation on colloidal alumina nanoparticles produced by collinear nanosecond double-pulse laser ablation in liquid
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Proceedings Volume 10254, XXI International Symposium on High Power Laser Systems and Applications 2016; 102541H (2017) https://doi.org/10.1117/12.2257277
Event: XXI International Symposium on High Power Laser Systems and Applications, 2016, Gmunden, Austria
Abstract
In this research, we investigated the effect of inter-pulse delay times on production of colloidal alumina nanoparticles by collinear double pulse laser ablation. In comparison to single pulse laser ablation, collinear double pulse laser ablation with inter-pulse delay times of 5, 10, 15 and 20 ns results in production of colloidal nanoparticles with smaller mean size and lower variance size distribution. In the case of 5 ns inter-pulse delay time, the highest concentration of nanoparticles was obtained due to more rapid cooling time of the plasma as a result of higher rate of nuclei generation than particle growth. The results also showed that the main pulse and the pre-pulse with 5 ns delay time have significant overlap and consequently such condition leads to maximum influence on the ablation.
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M. H. Mahdieh, B. Fattahi, M. Akbari Jafarabadi, "Experimental investigation on colloidal alumina nanoparticles produced by collinear nanosecond double-pulse laser ablation in liquid", Proc. SPIE 10254, XXI International Symposium on High Power Laser Systems and Applications 2016, 102541H (13 January 2017); doi: 10.1117/12.2257277; https://doi.org/10.1117/12.2257277
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