COHERENT INFRARED LASER.
Abstract
The report is concerned with techniques of obtaining population inversions among vibrational energy levels of molecules, with a view to using such inversions for the generation of coherent infrared light. The basis for obtaining population inversions is the Franck-Condon principle, and the first molecule under consideration, to which most of the work so far has been devoted, is halfheavy hydrogen HD. The work was primarily devoted to hydrogen spectroscopy. The development of a discharge tube is described. Results of spectroscopic work in the infrared are given. Spectra with high signal-to-noise ratio and resolution were recorded in the visible in order to determine population distributions among vibrational levels of hydrogen triplet states. The distributions inferred from these measurements are far from thermal and some population inversions are observed; these inversions however appear smaller than the values predicted by the Franck-Condon principle. The expected intensity distribution of the HD+ infrared spectrum for a range of temperatures was evaluated on a computer; these results are presented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 16, 1964
- Accession Number
- AD0603658
Entities
People
- A. Sher
- M. W. Muller