Space integrated, time resolved studies of the formation of aluminium (II) oxide in laser produced plasmas. (July 2019)

• Record Type: Journal Article
• Authors: Kelly, T J; Walsh, N; Costello, J T
• Is Part Of: Journal of physics. Volume 1298(2019)
• Publication Date: 2019-07
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1289/1/012009
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: We present time resolved, spatially integrated spectra of aluminium II oxide formed from the condensation of an aluminium laser plasma in air. The spectra show a revival of the emission from aluminium oxide molecules at 35 µ s after the plasma ignition. Thermodynamic calculations, together with temperature measurements, indicates that as the plasma cools, the aluminium oxide molecule forms through two different channels, explaining its increased presence.