Influence of the cavity losses on the energy and spectral characteristics of a pulsed chemical chain-reaction HF (DF) laser

Journal Article · Mon Jan 31 00:00:00 EST 2000 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2000V030N01ABEH001652· OSTI ID:21442671

Azarov, M A; Aleksandrov, Boris S; Drozdov, V A; Troshchinenko, G A ^[1]

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1. Russian Science Centre 'Applied Chemistry', St Petersburg (Russian Federation)

The dependences of the energy and spectral characteristics of the radiation of a pulsed photoinitiated chemical chain-reaction HF (DF) laser, operating at atmospheric pressure, on the optical cavity parameters were investigated. The maximum specific output energies of the HF and DF chain lasers (53 and 43 J litre{sup -1}) and their fullest spectra (47 and 83 lines, respectively) were similar when the unsaturated gain exceeded the threshold by a factor greater than 50. An analysis was made of how the energy and spectrum of the radiation of the HF (DF) laser were influenced by the spatiotemporal inhomogeneity of the initiation and of the course of the chemical chain reaction. There was a marked effect of the CO{sub 2} molecules in the active medium and in the air filling part of the volume of the complex cavity of the DF laser on its efficiency and emission spectrum. (control of laser radiation parameters)

• OSTI ID: 21442671
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 30, Issue 1; Other Information: DOI: 10.1070/QE2000v030n01ABEH001652; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AIR
ATMOSPHERIC PRESSURE
CARBON DIOXIDE
CHEMICAL LASERS
CHEMICAL REACTIONS
EFFICIENCY
EMISSION SPECTRA
FLUORIDES
GAIN
LASER CAVITIES
LASER RADIATION
AMPLIFICATION
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
ELECTROMAGNETIC RADIATION
FLUIDS
FLUORINE COMPOUNDS
GASES
HALIDES
HALOGEN COMPOUNDS
LASERS
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
SPECTRA