Phys. Rev. A 68, 032901 (2003) [8 pages]Laser vaporized Li2, Na2, K2, and LiNa molecules observed by cavity ring-down spectroscopyReceived 10 March 2003; published 19 September 2003 Laser ablation of solid lithium, sodium, potassium, and lithium-sodium alloy was performed using a 308-nm excimer laser at fluences close to 1Jcm-2. Frequency and time resolved A-X and B-X electronic transitions of 6,7Li2, Na2, LiNa and K2 respectively, were observed. Lithium atom, dimer velocities, and influence of the background gas on dimer content of the plume have been measured. The origin of dimers at high densities, with subthermal internal energy, is discussed. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.68.032901
DOI:
10.1103/PhysRevA.68.032901
PACS:
79.20.Ds, 52.38.Mf, 33.20.Kf
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