Accession Number : ADA112400

Title :   Research Studies on Radiative Collisional Processes.

Descriptive Note : Annual technical rept. 1 Oct 80-30 Sep 81,


Personal Author(s) : Harris,S E ; Young,J F

PDF Url : ADA112400

Report Date : Jan 1982

Pagination or Media Count : 26

Abstract : This program has supported theoretical and experimental studies in three broad areas. The first is a study of pair absorption processes which may be viewed as a collisional process in which two atoms and a photon simultaneously react and exchange energy. The present goal is to investigate the possibility of using such processes to construct new types of lasers. Secondly, we have invented and developed a promising new technique for pumping high pressure gas systems using high power microwave pulses. This work has led to two related projects: excitation of rare gas halide excimer lasers to achieve long pulse lengths, high reliability and good efficiencies, and the excitation of metal vapors to create new lasers. Finally, we have been applying the anti-Stokes light source developed here to practical measurements of VUV spectral features both to elucidate the physics of such innershell transitions and to search for transitions suitable for short wavelength lasers. This last project has also been partially supported by NASA. Section 2 summarizes our research findings for these projects, and Sections 3 and 4 list the publications and personnel, respectively, supported by this program.

Descriptors :   *Excimers, *Pumping(Electronics), *Ultraviolet spectroscopy, Far ultraviolet radiation, Microwaves, Radiofrequency power, Particle collisions, Energy transfer, Electron transitions, Resonance absorption, Absorption coefficients, Metal vapors, Excitation

Subject Categories : Lasers and Masers
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE