Influence of the oxidiser gas composition on the overtone generation efficiency of a supersonic cw chemical HF laser
| Autor: | Nikolai E Tret'yakov, Vitalii K Rebone, M V Moroz, I I Galaev, N N Tomashevich, S V Konkin, Igor' A Fedorov, Mikhail A Rotinyan |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Materials science
business.industry Overtone Statistical and Nonlinear Physics Radiation Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Optics law Optical cavity Energy transformation Molecule Gas composition Electrical and Electronic Engineering Atomic physics business Chemical composition |
| Zdroj: | Quantum Electronics. 28:663-666 |
| ISSN: | 1468-4799 1063-7818 |
| Popis: | An experimental investigation was made of the influence of the chemical composition of the oxidiser gas in an atomic-fluorine generator on the efficiency of generation of radiation representing the first overtone of the HF molecule in a self-contained supersonic cw chemical HF laser with the active medium 70 cm long. The optimal chemical composition was different for the fundamental and overtone transitions. A specific output energy of 84 J g-1 at a specific mass flow rate of 0.13 g s-1 cm-2 through the nozzle array was achieved by optimisation of a linear three-mirror optical cavity at the 1.33 — 1.35 μm wavelengths. The overtone radiation power generated in the whole of the active medium was 7.5 kW, corresponding to a 41% efficiency of energy conversion to an overtone. |
| Databáze: | OpenAIRE |
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