Laser-induced breakdown spectra of Zn2 molecule in the violet region

摘要

Laser-induced breakdown spectrum has been recorded in the region of 380-455 nm using second harmonics of Nd:YAG laser, computer-controlled TRIAX 320 M monochromator with a reciprocal linear dispersion 2.64 nm/mm fitted with ICCD detector. The spectrum consists of 108 bands, which are classified into four new subsystems E0$_{u}^{+}$ $(^{1}sum_{u}^{+}) a?’ A1_{g} (^{3}e??±_{g}), JO_{g}^{?±}ackslash 1_{g} (^{3}sum_{g}^{+}) a?’ D1_{u} (^{1}e??±_{u}), F1_{u} a?’ A0_{g}^{?±} (^{3}e??±_{g})$ and $F1_{u} a?’ A2_{g} (^{3}e??±_{g})$ along with additional bands of the known system $E0_{u}^{+} (^{1}sum_{u}^{+}) a?’ A0_{g}^{?±} (^{3}e??±_{g})$. The molecular constants for these systems have also been determined.