Michel Macler - Storming Media

Electronic Spectroscopy of B Atoms and B2 Molecules Isolated in Para-H2, Normal-D2, Ne, Ar, Kr, and Xe Matrices

15 MAY 2000

42 pages

Authors: Simon Tam; Michel Macler; Michelle E. DeRose; Mario E. Fajardo; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE WEST

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We report spectroscopic observations on B atoms isolated in cryogenic parahydrogen (pH2), normal deuterium (nD2), Ne, Ar, Kr, and Xe matrices, and of B2 molecules in Ne, Ar, Kr, and Xe matrices. The 2s(sup 2)3s((sup 2)S) left arrow 2s(sup 2)2p((sup 2)P) B atom Rydberg absorption suffers large gas-to- matrix blue shifts, increasing from +3000 to +7000/cm in the host sequence: Xe

Progress Towards the Production of Cryosolid HEDM Samples by Laser Ablation and Matrix Isolation Techniques

24 FEB 1998

11 pages

Authors: Mario E. Fajardo; Michel Macler; Simon Tam; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE WEST

We report a newly developed method for rapid in-vacuum deposition of thick solid parahydrogen (pH2) samples which are remarkable for their excellent optical qualities. These experiments were driven by the technological requirement of scaling up HEDM sample production while retaining the desirable aspects of the matrix isolation method for introducing energetic dopants (simplicity, versatility, etc.). The scientific result is a pronounced improvement in the quality of spectroscopic information obtained from ...