Scaling up of nonchain HF(DF) laser initiated by self-sustained volume discharge

Victor V. Apollonov; Konstantin N. Firsov; Sergey Yu. Kazantsev; Victor F. Oreshkin; Alexei V. Saifulin

doi:10.1117/12.375128

11 January 2000 Scaling up of nonchain HF(DF) laser initiated by self-sustained volume discharge

Victor V. Apollonov, Konstantin N. Firsov, Sergey Yu. Kazantsev, Victor F. Oreshkin, Alexei V. Saifulin

Proceedings Volume 3886, High-Power Lasers in Energy Engineering; (2000) https://doi.org/10.1117/12.375128
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

Abstract

Scaling problems are considered for non-chain HF laser operating on mixtures of SF₆ and hydrocarbons in which a chemical reaction is initiated by self-sustained volume discharge. The possibility of obtaining a volume discharge in SF₆ and in corresponding mixtures without preionization, i.e., self- initiated volume discharge (SIVD) is a new qualitative result in solving the scaling problem for non-chain lasers. The dynamics of SIVD evolution has been investigated. The possibility of obtaining SIVD is determined in SF₆ by mechanisms that limit the density of current, are related to specific energy release, and prevent the total energy from flowing through a single channel. A simple mode is developed for calculating the discharge characteristics in non-chain laser. The model provides a good agreement with experiment data. The obtained energy of nonchain HF-laser is 407 J and that of DF-laser is 325 J with the electric efficiency 4.3 percent and 3.4 percent, respectively. A possibility is estimated of creating non-chain HF lasers with the output energy of the order of kilojoules and higher on the basis of experimental data obtained.

Citation Download Citation

Victor V. Apollonov, Konstantin N. Firsov, Sergey Yu. Kazantsev, Victor F. Oreshkin, and Alexei V. Saifulin "Scaling up of nonchain HF(DF) laser initiated by self-sustained volume discharge", Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); https://doi.org/10.1117/12.375128

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