Laser produced spectrum of Si2 molecule in the region of 540-1010 nm

The laser produced spectrum of Si-2 molecule is recorded for the first time using laser ablation technique in the region of 540-1010 nm. About 110 bands are Observed in the entire spectral region and all these bands are classified into three band systems, viz. E-X, F-X and G-X of Si-2 molecule lying in the region of 814-1010 nm, 630-900 nm and 546-710 nm, respectively. All these electronic transitions take place from ground state X-3 Sigma(-)(g) state. The molecular constants of all these states have been determined. (C) 2008 Elsevier B.V. All rights reserved.