At present, our efforts are focused on the collision dynamics of internally excited diatomic molecules, with electronically excited Li2 colliding with rare gases as our model system. In particular, we are examining in separate studies the effect of vibrational and rotational excitation on collision outcomes. Experimental and computer results have shown that, when the molecular rotational frequency becomes comparable to the vibrational frequency, the collision dynamics are fundamentally altered. In fact, we are exploring a new regime in few-body dynamics. So far, studies of rotational and vibrational energy transfer have shown that the probability of vibrational excitation or de-excitation, very small at low rotational levels, is enhanced dramatically at high rotational levels. New studies are planned that will investigate electronic energy transfer, collision-induced dissociation, and chemical reaction involving these very rapidly rotating molecules. We also plan to extend these studies to molecules in other electronic states, and to collisions with other molecules.
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Last updated by Vacek Miglus Friday, November 08, 1996 3:14:25 PM
