The following is an abstract for the selected article. A PDF download of the full text of this article is available here. Members may download full texts at no charge. Non-members may be charged a small fee for certain articles.

Laser Vibrational Spectroscopy of Transient, Weakly Bound, and Reactive Molecules

Volume 44, Number 10 (Dec. 1990) Page 1595-1604

Dai, Hai-Lung

Using laser spectroscopic techniques, namely Stimulated Emission Spectroscopy (SES) and Stark Level Crossing Spectroscopy, in combination with molecular beam techniques, we can now study vibrational levels with energies from zero to tens-of-thousands wavenumbers with sub-Doppler resolution and single rotational level selectivity. Molecular species with concentrations as low as 10−4 Torr can be studied. Low-frequency intermolecular van der Waals vibrational levels in a weakly bound complex can be directly observed for the elucidation of inter-molecular forces. Short-lived radicals can be studied at high vibrational excitation. The dissociation behavior of a molecule with vibrational energy higher than the dissociation barrier can be examined with single vibrational quantum state resolution.