Spectroscopy of Metal-Hydrogen Clusters.
Abstract
Spectroscopic studies of clusters have been carried out in order to aid in the investigation of metal atom doping of solid hydrogen as a possible High Energy Density Material. The electronic spectra of small metal-atom clusters provides a well defined system for understanding the intermolecular forces between guest atoms and hosts and offers a stringent test of theoretical methods. In this work, a cluster beam spectroscopy apparatus was constructed to obtain spectra of clusters by laser-induced fluorescence and resonant multiphoton ionization. Electronic spectra were recorded for roughly size-selected clusters containing Al atoms bound to Ar clusters (containing up to 55 Ar atoms) by two photon ionization spectroscopy. The variations in band shifts and splittings provide an important measure of both cluster structure and perturbations of the atomic transitions. Efforts are now underway at Phillips Laboratory to test theoretical models of atom doping by comparing computed spectra with those reported here. In addition, laser-induced fluorescence spectra were observed and tentatively assigned to AlNe and Al-water.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 25, 1996
- Accession Number
- ADA320716
Entities
People
- Mitchio Okumura
Organizations
- California Institute of Technology