Title :
Effect of Excimer Laser Beam Spot Size on Carbon Laser-Produced Plasma Dynamics
Author :
Nica, Petru-Edward ; Rusu, George B. ; Dragos, Oana-Georgiana ; Ursu, Cristian
Author_Institution :
Gheorghe Asachi Tech. Univ. of Iasi, Iasi, Romania
Abstract :
The effect of excimer laser spot size on carbon laser-produced plasma dynamics is investigated. From intensified charged coupled device fast imaging, at higher fluences, an unusual plume shape was observed, the laser crater effects leading to an arrow like plume geometry. The origin of such behavior was explained through the laser-created crater profile measurements and space-resolved optical emission spectroscopy.
Keywords :
excimer lasers; plasma diagnostics; plasma production by laser; carbon laser-produced plasma dynamics; charged coupled device fast imaging; excimer laser beam spot size; laser crater effects; laser-created crater profile measurements; space-resolved optical emission spectroscopy; Laser ablation; Laser beams; Laser theory; Measurement by laser beam; Particle beams; Plasmas; Pulsed laser deposition; Arrow like plasma structure; carbon plasma dynamics; excimer laser spot size;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2014.2350532
