Autor:	Francisco Lira, Ricardo Castell
Rok vydání:	1997
Předmět:	Physics Molecular diffusion Laser ablation business.industry chemistry.chemical_element Astronomy and Astrophysics Plasma Radiation Laser Plume law.invention Optics chemistry Space and Planetary Science law Perpendicular Atomic physics business Titanium
Zdroj:	Astrophysics and Space Science. 256:505-509
ISSN:	0004-640X
DOI:	10.1023/a:1001109107336
Popis:	Optical emission studies have been performed on the laser ablation of Titanium metallic targets. The high intensity radiation of a pulsed N2 laser (337.1 nm; 8 J/cm2) was focused onto the target to generate a short living (150 ns) plasma cloud that expands away from the surface into vacuum at high velocities. Time resolved measurements were taken as a function of the distance from the studied surface with a spatial rsolution of 20 µm, by collecting the emitted light in a direction perpendicular to the plasma expansion axis. A simple diffusion model with a “source” term is proposed to demonstrate the interaction of the laser beam with the plasma plume, as derived from analysis of the space-time behavior of several UV and visible atomic transitions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6937b3ceb57d93e7e194a89e778d6953 https://doi.org/10.1023/a:1001109107336 Zobrazit plný text záznamu Full text from SpringerLink