Efficient oscillation regimes of an HF laser pumped by a nonchain chemical reaction initiated by a self-sustained discharge

Journal Article · Sat May 31 04:00:00 EDT 2003 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2003V033N05ABEH002424· OSTI ID:21470308

Panchenko, Aleksei N; Orlovskii, Viktor M; Tarasenko, Viktor F; Baksht, E Kh ^[1]

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1. Institute of High Current Electronics, Siberian Branch, Russian Academy of Sciences, Tomsk (Russian Federation)

The amplitude - time and spectral characteristics of laser radiation and discharge characteristics in mixtures of SF{sub 6} with hydrogen and hydrocarbons at a high lasing efficiency are investigated. Lasing efficiencies of {approx}10 % with respect to the deposited energy are obtained under the pumping from capacitive and inductive energy storage units. It is shown that, during a pump pulse, the maximum efficiencies are achieved at high values of the parameter E/p in the laser gap. When profiled electrodes and UV preionisation are used, a specific output energy of a nonchain HF laser of {approx}140 J L{sup -1} atm{sup -1} and a lasing efficiency of {approx}4.5 % with respect to the stored energy were obtained. It is shown that the emission spectrum of a nonchain HF laser operating at high lasing efficiencies becomes significantly wider and cascade lasing is realised on the {nu}(3-2) {yields} {nu}(2-1) {yields} {nu}(1-0) vibrational transitions at several rotational lines. (lasers)

• OSTI ID: 21470308
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 5 Vol. 33; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLITUDES
CHEMICAL REACTIONS
EFFICIENCY
ELECTRIC DISCHARGES
ELECTRODES
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION SPECTRA
ENERGY
ENERGY STORAGE
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
HYDROFLUORIC ACID
HYDROGEN
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INORGANIC COMPOUNDS
LASER RADIATION
LASERS
NONMETALS
ORGANIC COMPOUNDS
OSCILLATIONS
PHYSICAL PROPERTIES
PULSES
PUMPING
RADIATIONS
SPECTRA
STORAGE
STORED ENERGY
SULFUR COMPOUNDS
SULFUR FLUORIDES
THERMODYNAMIC PROPERTIES
ULTRAVIOLET RADIATION