Pulsed electron-beam sustained discharge CO laser on oxygen-containing gas mixtures

Journal Article · Thu Feb 28 04:00:00 EST 2008 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2008V038N02ABEH013746; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)· OSTI ID:21185826

Ionin, A A; Klimachev, Yu M; Kozlov, A Yu; Kotkov, A A; Seleznev, L V ^[1]

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1. P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

It is shown that the addition of molecular oxygen to the working mixture of a pulsed electron-beam sustained-discharge (EBSD) laser CO amplifier leads to the increase in the small-signal gain (SSG) at the fundamental vibrational v+1{yields}v transitions in a CO molecule for v=6-13, which is explained by the increase in the population of vibrational levels. In this case, the temporal parameters of the dynamics decrease at all probed transitions. Variations observed in the SSG dynamics are explained by analysing the kinetic processes of vibrational-vibrational exchange between molecules. The study of lasing parameters of a pulsed CO laser showed that the threshold energy input decreased with increasing the oxygen content in the working mixture. It is found that the CO laser efficiency at fundamental transitions increases with the addition of oxygen, the maximum efficiency being achieved at lower energy inputs. It is shown that the pulsed EBSD CO laser can operate on the air working mixture both at the fundamental transitions and the first vibrational overtone transitions v+2{yields}v. (lasers. amplifiers)

• OSTI ID: 21185826
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 2 Vol. 38; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AIR
AMPLIFIERS
BACKSCATTERING
CARBON MONOXIDE
ELECTRON BEAMS
ELECTRON DIFFRACTION
LASERS
OXYGEN
THRESHOLD ENERGY