**Author details**

direction. This complex behavior affects the angular plasma expansion and subsequently affect the spatial distribution of the deposited film. The heterogeneity of the plasma plume velocity field is in good agreement with the theoretical assumption

ICCD imaging revealed the splitting of the laser produced plasmas into two different structures, expanding with different velocities. An angular distribution of the front velocity was reconstructed for each of the two plasmas. The specie velocities were correlated to the properties of the elements found in the target (mass and

A novel theoretical approach based on multifractal physics was used to simulate the behavior of multi element plasmas. The model considers the relation between the scattering probability, collision frequency and the fractality degree of the plasmas. The angular distribution of the ejected particles was discussed with respect to the fractality of the system. The simulation results are in good agreement with

This work was supported by Romanian Ministry of Education and Research, Nucleu Program LAPLAS VI – contract n. 16 N/2019 and contract n. PD-145/2020.

presented in the framework of the non-differential model.

*Practical Applications of Laser Ablation*

conductivity).

the experimental data.

**Acknowledgements**

**Conflict of interest**

**132**

The authors declare no conflict of interest.

Stefan Andrei Irimiciuc<sup>1</sup> \*, Norina Forna<sup>2</sup> , Andrei Agop<sup>3</sup> , Maricel Agop4 , Stefan Toma<sup>3</sup> and Doriana Forna Agop2

1 National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Bucharest, Romania

2 "Gr.T.Popa" University of Medicine and Pharmacy – Iaşi,Str. Universităţii no. 16, 700115, Iaşi, Romania

3 Material Science and Engineering Department, "Gheorghe Asachi" Technical University of Iasi Romania, 700050, Iasi, Romania

4 Department of Physics, "Gh. Asachi" Technical University of Iasi, 700050, Iasi, Romania

\*Address all correspondence to: stefan.irimiciuc@inflpr.ro

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
