Laser on nitrogen-electronegative gas mixtures, pumped by inductive energy storage generator: Experiment and theoretical model

Панченко, А. Н.; Suslov, A. I.; Тарасенко, В. Ф.; Konovalov, I. N.; Tel'minov, A E

doi:10.3103/s1541308x09040037

Cited by 15 publications

(3 citation statements)

References 56 publications

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“…Earlier it was established that addition of electro-negative gases substantially, by the order of magnitude 26 , increases the radiation energy and power of the laser operating on the second positive system of nitrogen. The increase in the radiation II i!…”

Section: Experimental Equipment and Techniquesmentioning

confidence: 99%

“…All calculation procedures (in the form of individual program blocks) are combined into a self-consistent model, described in details in 26 . Kinetic model of the REP DD allows us to determine optimal gas mixture for achieving maximal laser efficiency and to predict the radiation parameters of nitrogen laser at 337.1 nm in different gas mixtures of nitrogen with electro-negative additions.…”

Section: Nitrogen Laser (λ = 3371 Nm)mentioning

confidence: 99%

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Gas lasers pumped by runaway electrons preionized diffuse discharge

et al. 2015

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It was shown that run-away electron preionized volume (diffuse) discharge (REP DD) can be used as an excitation source of gas mixtures at elevated pressures and can produce laser emission.We report experimental and simulated results of application of the REP DD for excitation of different active gas mixtures. Kinetic model of the REP DD in mixtures of nitrogen with SF 6 is developed allowing predicting the radiation parameters of nitrogen laser at 337.1 nm. Peculiarities of the REP DD development in different gas mixtures are studied, as well.It was shown that the REP DD allows obtaining efficient lasing stimulated radiation in the IR, visible and UV spectral ranges. New operation mode of nitrogen laser is demonstrated under REP DD excitation. Laser action on N 2 , HF, and DF molecules was obtained with the efficiency close to the limiting value.Promising prospects of REP DD employment for exciting a series of gas lasers was demonstrated. It was established that the REP DD is most efficient for pumping lasers with the mixtures comprising electro-negative gases.

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Section: Experimental Equipment and Techniquesmentioning

confidence: 99%

Section: Nitrogen Laser (λ = 3371 Nm)mentioning

confidence: 99%

Gas lasers pumped by runaway electrons preionized diffuse discharge

et al. 2015

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“…Nowadays, generators with SOSs are quite widely used in various applied research studies. They are applied mostly for generating nanosecond electron beams and X-ray pulses [3,4], supplying high-power microwave generators [5][6][7] and gas lasers [8], electric discharge ignition in gases and liquids [9]- [11], and in a number of biological and medical applications [12,13].…”

Section: Introductionmentioning

confidence: 99%

Solid-state repetitive generators of short GW-range pulses: a review

Rukin¹

2018

J. Inst.

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The paper presents a brief review of solid-state repetitive generators of nano- and subnanosecond pulses with GW-range of peak power developed by Institute of Electrophysics. The base of the described approach for obtaining such pulses consists in using solid-state generators with its output unit containing intermediate inductive storage and semiconductor opening switch (SOS). The most powerful SOS generator of S-500 type is described. The generator provides a peak power of up to 6 GW, an output voltage of 500–900 kV, a voltage rise time of 2–3 ns, a pulse length (full width at half maximum, FWHM) of 5–7 ns across external loads of 40–100 Ω, and a pulse repetition frequency up to 1 kHz in the burst mode of operation. To reduce the voltage rise time of S-500 generator semiconductor sharpeners are used. The sharpeners are made as stacks of series-connected dynistor structures built into an oil-filled coaxial line at the place of an inner conductor. An input voltage pulse has the amplitude of 540 kV with the rise time of ∼1.2 ns and voltage rise rate of ∼0.3 MV/ns. After pulse propagation through the sharpening sections, its rise time is reduced down to 360 ps, and the voltage rise rate is increased up to ∼0.95 MV/ns. Peak power of the sharpened pulse is within the range of 4.5–5.5 GW. It is shown, that gyromagnetic nonlinear transmission line (NLTL) can operate as a magnetic pulse compressor. At such an operating regime, the duration of the input pulse is close to the period of generated oscillations, and the main part of the input pulse energy is transmitted only to the first peak of the oscillations. In energy compression experiments, the input pulse with amplitude of 500 kV and FWHM of 7 ns is applied to the NLTL. At the output of the NLTL in 40 Ω coaxial transmission line, the pulse amplitude is increased to 740 kV and the pulse duration is reduced to ∼2 ns, which correspond to power amplification of the input pulse from ∼6 to ∼13 GW. In pulse sharpening experiments, a three-stage NLTL is used. The system provides a peak power of 15 GW in 44-Ω line, FWHM of 120 ps, and a record high level of the voltage rise rate of 10 MV/ns. Applications of the developed generators are given.

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Design and construction of prototype transversely excited atmospheric (TEA) nitrogen laser energized by a high voltage electrical discharge

Hussain

Imran

2015

Journal of King Saud University - Science

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Laser on nitrogen-electronegative gas mixtures, pumped by inductive energy storage generator: Experiment and theoretical model

Cited by 15 publications

References 56 publications

Gas lasers pumped by runaway electrons preionized diffuse discharge

Gas lasers pumped by runaway electrons preionized diffuse discharge

Solid-state repetitive generators of short GW-range pulses: a review

Design and construction of prototype transversely excited atmospheric (TEA) nitrogen laser energized by a high voltage electrical discharge

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