Superatmospheric x-ray preionized TE-CO2 discharge unit

Victor V. Apollonov; K. Kh. Kazakov; N. V. Pletnyev; Vladimir R. Sorochenko; A. V. Astakhov; Gennady A. Baranov; A. A. Kuchinsky; V. P. Tomashevich

doi:10.1117/12.414081

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25 January 2001 Superatmospheric x-ray preionized TE-CO₂ discharge unit

Victor V. Apollonov, K. Kh. Kazakov, N. V. Pletnyev, Vladimir R. Sorochenko, A. V. Astakhov, Gennady A. Baranov, A. A. Kuchinsky, V. P. Tomashevich

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Proceedings Volume 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference; (2001) https://doi.org/10.1117/12.414081
Event: XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, 2000, Florence, Italy

Abstract

CO2 laser system generating the train of ~200 ps pulses with total energy up to 5 J was put in operation in General Physics Institute of Russian Academy of Sciences (IOFRAN) recently. Initial ~100 ps 10.6 ?m laser pulse with energy 10 ?J was regeneratively amplified in 5 x 5 x 5 cm3 discharge volume X-ray preionized TB-CO2 discharge unit developed and manufactured in D.V.Efremov Scientific Research Institute of Electrophysical Apparatus (NIJEFA) in cooperation with JOFRAN. The results on upgrade of this unit towards obtaining 10 atm volume self-sustained discharge in C02:N2:He mixtures with reasonably high percentage of molecular gases are reported. Owing to this upgrade free running mode laser radiation energy B1 (when the unit was equipped with unstable telescopic resonator) at 6 atm was increased up to 22.2 J, which corresponds to specific energy extraction 5.4 J/l/atm and efficiency 4.5%. The estimated value of B1 from such a laser at 10 atm is 15 J. It corresponds to peak power of regeneratively amplified 2 ps 10 ?m pulse formed in master oscillator of laser system Ñ1.5 TW. Prospective of further upgrade of laser system using new 10 x 10 x 100 cm3 discharge volume 10 atm TE-C02 discharge unit which is under construction now in NIIEFA in the network of ISTC Project #1072 is discussed.

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Victor V. Apollonov, K. Kh. Kazakov, N. V. Pletnyev, Vladimir R. Sorochenko, A. V. Astakhov, Gennady A. Baranov, A. A. Kuchinsky, and V. P. Tomashevich "Superatmospheric x-ray preionized TE-CO₂ discharge unit", Proc. SPIE 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (25 January 2001); https://doi.org/10.1117/12.414081

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