Lasing in the UV, IR and visible spectral ranges in a runaway-electron-preionised diffuse dischrage

Vil'tovskii, P O; Ломаев, М. И.; Панченко, А. Н.; Panchenko, N A; Рыбка, Д. В.; Тарасенко, В. Ф.

doi:10.1070/qe2013v043n07abeh014928

Cited by 13 publications

(5 citation statements)

References 19 publications

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“…Small additions of other gases made it possible to obtain laser radiation on the transitions of various molecules and atoms using facility 1 [15, 27]. As was mentioned above, the additions did not significantly affect the diffuse discharge parameters.…”

Section: Resultsmentioning

confidence: 99%

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Diffuse discharges in SF ₆ and mixtures of SF ₆ with H ₂ , formed by nanosecond voltage pulses in non‐uniform electric field

et al. 2018

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Results of experimental study of nanosecond diffuse discharge in SF 6 and gas mixtures of SF 6 with H 2 , D 2 and C 2 H 6 are presented. The aim of this work is to study parameters of discharge between two extended electrodes with a small radius of curvature in SF 6 and SF 6 with additives. It was shown that diffuse discharge can be formed in SF 6 at elevated pressure between blade electrodes with length of 30 cm. It was also confirmed that in a sharply non-uniform electric field a beam of runaway electrons is generated and that the gap breakdown occurs due to ionisation waves which begin on electrodes with small radius of curvature. Laser action in the infrared spectral region was obtained in SF 6-H 2 (D 2 , C 2 H 6) mixtures. The laser output up to 110 mJ was easily achieved which corresponds to ultimate intrinsic efficiency (with respect to deposited energy) of 10%.

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Section: Resultsmentioning

confidence: 99%

“…The aim of this work is to study parameters of REP DD in SF 6 and SF 6 with additives of other gases between two extended electrodes with a small radius of curvature. Similar systems were used earlier to obtain UV laser action on nitrogen and rare gas fluoride molecules [15].…”

Section: Introductionmentioning

confidence: 99%

Diffuse discharges in SF ₆ and mixtures of SF ₆ with H ₂ , formed by nanosecond voltage pulses in non‐uniform electric field

et al. 2018

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“…where initial charge on the capacitor plates is Q 0 =U 0 C. Since the running time in the PFL (2 ns) is one order less than the oscillation period of the discharge current (20 ns) the quasistationarity condition is performed and expressions (1) and (2) are valid. Than it is easy to calculate initial energy stored in the PFL as E 0 =CU 0 2 /2.…”

Section: Experimental Setup and Measuring Methodsmentioning

confidence: 99%

“…Early [1][2][3][4] it was shown that gas mixtures at elevated pressures pumped by a runaway-electron-preionized volume (diffuse) discharge (REP DD) exhibited lasing in the IR 1 , visible 2 and UV 3, 4 spectral ranges. In those works, runaway electrons and laser radiation were generated in the same discharge gap.…”

Section: Introductionmentioning

confidence: 99%

Efficient gas lasers pumped by run-away electron 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 active gas mixtures at elevated pressures and can produce laser emission.We report experimental and calculated results of application of the REP DD for excitation of different active gas mixtures. It was shown that the REP DD allows to obtain efficient lasing stimulated radiation in the IR, visible and UV spectral ranges.Kinetic model of the REP DD in mixtures of nitrogen with SF 6 is developed allowing to predict the radiation parameters of nitrogen laser at 337.1 nm.Promising prospects of REP DD employment for exciting a series of gas lasers was demonstrated. Lasing was obtained on molecules N 2 , HF, and DF with the efficiency close to the limiting value. It was established that the REP DD is most efficient for pumping lasers with the mixtures comprising electro-negative gases.

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“…Diffuse discharges are started to apply for excitation of gas lasers [23][24][25] . However, at the moment this REP DD application is studied insufficiently.…”

Section: Introductionmentioning

confidence: 99%

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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Lasing in the UV, IR and visible spectral ranges in a runaway-electron-preionised diffuse dischrage

Cited by 13 publications

References 19 publications

Diffuse discharges in SF ₆ and mixtures of SF ₆ with H ₂ , formed by nanosecond voltage pulses in non‐uniform electric field

Diffuse discharges in SF ₆ and mixtures of SF ₆ with H ₂ , formed by nanosecond voltage pulses in non‐uniform electric field

Efficient gas lasers pumped by run-away electron preionized diffuse discharge

Gas lasers pumped by runaway electrons preionized diffuse discharge

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Lasing in the UV, IR and visible spectral ranges in a runaway-electron-preionised diffuse dischrage

Cited by 13 publications

References 19 publications

Diffuse discharges in SF 6 and mixtures of SF 6 with H 2 , formed by nanosecond voltage pulses in non‐uniform electric field

Diffuse discharges in SF 6 and mixtures of SF 6 with H 2 , formed by nanosecond voltage pulses in non‐uniform electric field

Efficient gas lasers pumped by run-away electron preionized diffuse discharge

Gas lasers pumped by runaway electrons preionized diffuse discharge

Contact Info

Product

Resources

About

Diffuse discharges in SF ₆ and mixtures of SF ₆ with H ₂ , formed by nanosecond voltage pulses in non‐uniform electric field

Diffuse discharges in SF ₆ and mixtures of SF ₆ with H ₂ , formed by nanosecond voltage pulses in non‐uniform electric field