FLUORESCENCE SPECTROSCOPY OF ALKALI ATOMS AND ALKALI CLUSTERS ATTACHED TO LARGE LIQUID HELIUM CLUSTERS
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Date
1994
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Ohio State University
Abstract
We have built a new apparatus in which laser induced fluorescence (LIF) of atoms, molecules and clusters attached to rare gas clusters can be carried out. The cluster beam source can be operated from room T down to about 10K while the clusters can be seeded with the chromophore of interest in a pick-up cell located immediately after the skimmer. An efficient LIF detector is located a few centimeters downstream of the pick-up point. In the first week of operation, preliminary data have been collected on the $A \leftarrow X$ spectrum of $NA_{2}$ attached to large liquid $He_{n} (n = 10^{4})$ clusters.
Description
The financial support of the US Air Force under contract \#FO 4611-91K0001 is gratefully acknowledged, It is also a pleasure to thank Prof. W. Ernst for useful discussions on the spectroscopy of alkali-clusters.
Author Institution: Department of Chemistry, Princeton University
Author Institution: Department of Chemistry, Princeton University