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Numerical modelling of the process of energy extraction from a mixture of singlet oxygen and iodine in amplification of a short pulse

D. V. Ishkov, V. S. Pazyuk, M. P. Frolov, N. N. Yuryshev

P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow

Abstract: A numerical analysis is made of the extraction of energy from a mixture of singlet oxygen and atomic iodine by repeated passage of a 10 ns laser pulse through an amplifier 1 m long. Production of atomic iodine by photolysis of the iodides CH₃I and CF₃I is considered. It is shown that a high degree of energy extraction is possible after a reasonable number of passes (20 — 40) if CH₃I is used, but this requires the absence of chlorine impurities from the mixture. The replacement of CH₃I by CF₃I considerably reduces the energy extraction efficiency and leads to more stringent requirements in respect of an initiation system.

PACS: 42.55.Ks, 42.60.By

 English version: Quantum Electronics, 1995, 25:2, 104–107

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