Special Issue "Advances in Laser Produced Plasmas Research"

A special issue of Symmetry (ISSN 2073-8994).

Deadline for manuscript submissions: 15 December 2019.

Special Issue Editors

Prof. Maricel Agop
E-Mail Website
Guest Editor
Department of Materials Science, Gheorghe Asachi Technical University of Iasi, Romania
Interests: theoretical physics
Prof. Viorel-Puiu Paun
E-Mail Website
Guest Editor
Department of Physics, Polytechnic University of Bucharest, RO-77206, Bucharest, Romania
Interests: materials science; nuclear physics; experimental physics
Dr. Stefan Andrei IRIMICIUC
E-Mail Website
Guest Editor
National Institute for Lasers, Plasma and Radiation Physics -NILPRP, Bucharest, Romania

Special Issue Information

Dear Colleagues,

The world of laser–matter interactions has known great and rapid advancements in the last few years, with a considerable increase in the number of both experimental and theoretical studies.  The classical paradigm used to describe the dynamics of laser-produced plasmas has been challenged by new peculiar phenomena observed experimentally, such as plasma particles oscillations, plume splitting and chaotic and self-structuring behavior during the expansion of the ejected particles. The use of multiple complimentary techniques has become a requirement, as different aspects can be showcased by specific experimental approaches. To balance these non-linear effects and still remain tributary to the classical theoretical views on laser produced plasma dynamics novel theoretical models that cover the two sides of the ablation plasma (differentiability and non-differentiability) still need to be developed.

Plasma is a strongly nonlinear dynamic system, with many degrees of freedom and other symmetries, favorable for the development of ordered structures, instabilities and transitions (from ordered to chaotic states). In such context we want to showcase research based on global and local symmetries, complexity, invariance and conservation laws, etc.

This Special Issue aims to attract research focused on exciting new phenomena related to laser produced plasma dynamics with the implementation of theoretical models towards understanding the complex reality as it is showcased by experimental investigations.

Prof. Maricel Agop
Prof. Viorel-Puiu Paun
Dr. Stefan Andrei IRIMICIUC
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Differentiability and non-differentiability procedures in laser produced plasmas dynamics analysis
  • Holographic approach in understanding transient laser produced plasma dynamics
  • Chaos and self-structuring during laser produced plasma plume expansion. Non-linear approach
  • Laser produced plasma particle oscillations
  • Particle separation during ablation plasma plume flow
  • Direct and hidden symmetries in laser produced plasmas
  • Theoretical modelling of transient plasmas generated by laser ablation
  • Fractal models in space charge complex structures and other symmetries of plasma

Published Papers (2 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Open AccessArticle
Investigations of Laser Produced Plasmas Generated by Laser Ablation on Geomaterials. Experimental and Theoretical Aspects
Symmetry 2019, 11(11), 1391; https://doi.org/10.3390/sym11111391 - 09 Nov 2019
Abstract
Several surface investigation techniques, such as X-ray diffraction (XRD), EDX, and optical microscopy, were employed in order to describe the mineral contents in several geomaterials. Space and time resolved optical emission spectroscopy was implemented to analyze the plasma generated by the laser–geomaterial interaction. [...] Read more.
Several surface investigation techniques, such as X-ray diffraction (XRD), EDX, and optical microscopy, were employed in order to describe the mineral contents in several geomaterials. Space and time resolved optical emission spectroscopy was implemented to analyze the plasma generated by the laser–geomaterial interaction. The values of the plasma parameters (velocity and temperature) were discussed with respect to the nature of the minerals composing the geomaterials and the morphological structure of the samples. Correlations were found between the excitation temperatures of the atomic and ionic species of the plasmas and the presence of calcite in the samples. A mathematical model was built to describe the dynamics in ablation plasma using various mathematical operational procedures: multi structuring of the ablation plasma by means of the fractal analysis and synchronizations of the ablation plasma entities through SL (2R) type group invariance and in a particular case, through self-modulation in the form of Stoler type transformations. Since Stoler type transformations are implied in general, in the charge creation and annihilation processes, then the SL (2R) type group invariance become fundamental in the description of ablation plasma dynamics. Full article
(This article belongs to the Special Issue Advances in Laser Produced Plasmas Research)
Show Figures

Graphical abstract

Open AccessArticle
Lorenz Type Behaviors in the Dynamics of Laser Produced Plasma
Symmetry 2019, 11(9), 1135; https://doi.org/10.3390/sym11091135 - 06 Sep 2019
Abstract
An innovative theoretical model is developed on the backbone of a classical Lorenz system. A mathematical representation of a differential Lorenz system is transposed into a fractal space and reduced to an integral form. In such a conjecture, the Lorenz variables will operate [...] Read more.
An innovative theoretical model is developed on the backbone of a classical Lorenz system. A mathematical representation of a differential Lorenz system is transposed into a fractal space and reduced to an integral form. In such a conjecture, the Lorenz variables will operate simultaneously on two manifolds, generating two transformation groups, one corresponding to the space coordinates transformation and another one to the scale resolution transformation. Since these groups are isomorphs various types isometries become functional. The Lorenz system was further adapted to describe the dynamics of ejected particles as a result of laser matter interaction in a fractal paradigm. The simulations were focused on the dynamics of charged particles, and showcase the presence of current oscillations, a heterogenous velocity distribution and multi-structuring at different interaction scales. The theoretical predictions were compared with the experimental data acquired with noninvasive diagnostic techniques. The experimental data confirm the multi-structure scenario and the oscillatory behavior predicted by the mathematical model. Full article
(This article belongs to the Special Issue Advances in Laser Produced Plasmas Research)
Show Figures

Graphical abstract

Back to TopTop