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Open AccessArticle

The Effect of Confinement Angle on Self-Colliding Aluminium Laser Plasmas Using Spectrally Resolved Fast Imaging

1
School of Physical Sciences and National Centre for Plasma Science and Technology, Dublin City University, 9 D09 Dublin, Ireland
2
Department of Computer Science and Applied Physics, Galway-Mayo Institute of Technology, Galway Campus, T91 T8NW Galway, Ireland
*
Author to whom correspondence should be addressed.
Materials 2020, 13(23), 5489; https://doi.org/10.3390/ma13235489
Received: 20 October 2020 / Revised: 26 November 2020 / Accepted: 30 November 2020 / Published: 2 December 2020
(This article belongs to the Special Issue Laser Ablation: Materials and Applications)
In this work we investigate the effect of the confinement angle on self-colliding aluminium laser produced plasmas. More specifically, we apply V-shaped channel targets of different angles (90°, 60° and 30°) and report both broadband and filtered time-resolved fast imaging measurements on the formation of such plasmas in ambient air. Based on the broadband measurements we suggest that the plasmas formed on the two inner walls of the V-shaped channel expand normally to the surface, interact with each other and possibly stagnate. The spectrally filtered fast imaging reveals the presence of a spatial distribution of different species within the plasmas and signatures of forced recombination. View Full-Text
Keywords: laser produced plasmas; self-colliding plasmas; time-resolved imaging laser produced plasmas; self-colliding plasmas; time-resolved imaging
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MDPI and ACS Style

Varvarezos, L.; Davitt, S.J.; Costello, J.T.; Kelly, T.J. The Effect of Confinement Angle on Self-Colliding Aluminium Laser Plasmas Using Spectrally Resolved Fast Imaging. Materials 2020, 13, 5489.

AMA Style

Varvarezos L, Davitt SJ, Costello JT, Kelly TJ. The Effect of Confinement Angle on Self-Colliding Aluminium Laser Plasmas Using Spectrally Resolved Fast Imaging. Materials. 2020; 13(23):5489.

Chicago/Turabian Style

Varvarezos, Lazaros; Davitt, Stephen J.; Costello, John T.; Kelly, Thomas J. 2020. "The Effect of Confinement Angle on Self-Colliding Aluminium Laser Plasmas Using Spectrally Resolved Fast Imaging" Materials 13, no. 23: 5489.

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