Accession Number : ADA289737

Title :   Advances in High-Power Chemical Lasers,

Corporate Author : NATIONAL AIR INTELLIGENCE CENTER WRIGHT-PATTERSON AFB OH

Personal Author(s) : Guoha, Sha

PDF Url : ADA289737

Report Date : 15 DEC 1994

Pagination or Media Count : 15

Abstract : Chemical laser is characteristically energized by an exoergic chemical reaction which produces the necessary population inversion of lasing species. Based on the enormous chemical energy deposit, several kinds of chemical laser now deliver the cw power outputs of megawatt magnitude, far higher than any other lasers. Accordingly, along with the improvement of gas medium homogeneity and mode-selectivity of the optical cavity chemical laser has also attained high beam quality of a near diffraction-limited divergence angle. Recent efforts in developing new chemical laser have focused on the short wavelength chemical laser system, e. g. from the early DF (iota = 3. 8 micrometer) and HF (lambda = 2. 7 micrometer) to late O2(1) Delta)-1 (lambda = 1.315 micrometer) and HF overtone transition laser (approx. 13 micrometer). At present the community of chemical physics are much interested in the visible chemical laser which may be realized by stimulated emission of an electronic excited state. (jg)

Descriptors :   *HIGH POWER, *CHEMICAL LASERS, EMISSION, OPTICS, STIMULATION(GENERAL), ENERGY, CAVITIES, LASERS, POPULATION, HYDROGEN, GASES, OXYGEN, DEPOSITS, PHYSICS, DIFFRACTION, ELECTRONIC STATES, CHEMICAL REACTIONS, VISIBILITY, TRANSLATIONS, INVERSION, TRANSITIONS, FLUORIDES, BEAMS(RADIATION), EXOTHERMIC REACTIONS, CHINA, HOMOGENEITY, CHINESE LANGUAGE.

Subject Categories : Physical Chemistry
      Lasers and Masers
      Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE