Studies on the ns-IR-Laser-Induced Plasma Parameters in the Vanadium Oxide. (22nd August 2011)

• Record Type: Journal Article
• Authors: Sarkar, Arnab; Shah, Raju V.; Alamelu, D.; Aggarwal, Suresh K.
• Other Names: Reshak Ali Hussain Academic Editor.
• Is Part Of: Journal of atomic, molecular, and optical physics. Volume 2011(2011)
• Publication Date: 2011-08-22
• Subjects: Nuclear physics -- Periodicals; Physical optics -- Periodicals; Molecules -- Periodicals; Atoms -- Periodicals; Atoms; Molecules; Nuclear physics; Physical optics; Periodicals; Electronic journals; 539.7
• DOI: 10.1155/2011/504764
• Languages: English
• ISSNs: 1687-9228

Abstract

Abstract : We report spectroscopic studies of laser-induced plasma (LIP) produced by ns-IR-Nd:YAG laser light pulses of different energies onto four different oxides of vanadium (VO, V2 O3, VO2, and V2 O5 ) in air under atmospheric pressure. For each oxide with a different oxidation state of vanadium, both electron density and plasma temperature were calculated for different time delays and laser pulse energies. The plasma temperature was determined from Boltzmann plot method, whereas the electron number density was estimated from the Saha equation. The decay rates for plasma temperature as well as electron density were observed to follow power law and were independent of the nature of vanadium oxide. These investigations provide an insight to optimize various parameters during LIBS analysis of vanadium-based matrices.