| There is a great interest in understanding processes occurring in the ground and excited states of both atoms and molecules. Professor Baird's research in chemical physics involves studies of energy and state transfer collisions, as well as measurement of energy level separations, in simple molecular and atomic species. For example, in studying the resonance fluorescence from atomic thallium it has been possible to measure the free atomic lifetime, radiation trapping (coherent narrowing), the resonance collision cross sections caused by rare gas thallium collisions. Also in these studies there is evidence of multiple collisions in the excited state-ground state atoms. |
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