Special Features of Lasing on N2, N2 +, Ar, Ne, and CO2 Transitions Pumped by a Nanosecond Transverse Discharge

N. G. Ivanov, V. F. Losev, V. E. Prokop’ev

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Special features of lasing in the most widespread molecular and atomic gases excited by a nanosecond transverse discharge are investigated. It is shown that the maximum of the lasing band on the C3Пu – B3Пg transition of the 0–0 vibrational molecular nitrogen band depends on the composition and pressure of the employed gas mixture and can be tuned from 0.2 to 0.3 nm. Simultaneous lasing on nitrogen molecules and ions at the wavelengths λ = 337.1 and 427.8 nm, respectively, is possible at a certain nitrogen content in the He/N2 mixture. Wherein, regions of lasing at different wavelengths are spatially separated in the output beam cross section. To obtain maximal energy of laser radiation in argon at λ = 912.3 nm, high He pressures (4 atm) and maximal charge voltages (25 kV) are required. The most probable reason for the limited lifetime of a CO2 laser is the accumulation of CN molecules in the mixture.

Original languageEnglish
Pages (from-to)862-867
Number of pages6
JournalRussian Physics Journal
Volume59
Issue number6
DOIs
Publication statusPublished - 1 Oct 2016

Fingerprint

lasing
nitrogen
monatomic gases
molecular gases
wavelengths
gas mixtures
molecules
argon
laser beams
life (durability)
output
cross sections
electric potential
lasers
ions
energy

Keywords

  • bulk discharge
  • laser lifetime
  • lasing
  • spectrum
  • wavelength

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Special Features of Lasing on N2, N2 +, Ar, Ne, and CO2 Transitions Pumped by a Nanosecond Transverse Discharge. / Ivanov, N. G.; Losev, V. F.; Prokop’ev, V. E.

In: Russian Physics Journal, Vol. 59, No. 6, 01.10.2016, p. 862-867.

Research output: Contribution to journalArticle

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AB - Special features of lasing in the most widespread molecular and atomic gases excited by a nanosecond transverse discharge are investigated. It is shown that the maximum of the lasing band on the C3Пu – B3Пg transition of the 0–0 vibrational molecular nitrogen band depends on the composition and pressure of the employed gas mixture and can be tuned from 0.2 to 0.3 nm. Simultaneous lasing on nitrogen molecules and ions at the wavelengths λ = 337.1 and 427.8 nm, respectively, is possible at a certain nitrogen content in the He/N2 mixture. Wherein, regions of lasing at different wavelengths are spatially separated in the output beam cross section. To obtain maximal energy of laser radiation in argon at λ = 912.3 nm, high He pressures (4 atm) and maximal charge voltages (25 kV) are required. The most probable reason for the limited lifetime of a CO2 laser is the accumulation of CN molecules in the mixture.

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