Efficient N2 laser pumped by nanosecond diffuse discharge

Alexei N. Panchenko, Victor F. Tarasenko, Mikhail I. Lomaev, Nikolay A. Panchenko, Alexei I. Suslov

Research output: Contribution to journalArticle

Abstract

Laser action on C3Πu→ B3Πg transition of nitrogen pumped by a runaway electron preionized discharge (REP DD) was investigated. Emission parameters of diffuse discharge formed by runaway electrons in gaps between long blade electrodes are studied. It was shown that sufficient uniformity of REP DD allows its application as an efficient pumping source of gas lasers. Model of nitrogen laser on N2 – SF6 mixture pumped by nanosecond diffuse discharge was developed. Results of calculations were close to experimental ones and predicted two laser operation modes. In mixture of SF6 – N2 electrical efficiency of 0.2% was obtained. Ultimate laser efficiency of 0.23% was achieved in triple mixtures He–N 2 – SF6. Lasing on N2 molecules with 2 or 3 peaks in successive discharge current oscillations was obtained for the first time in N2 – SF6 – (He) mixture. It was shown that addition of helium to the mixture allows to change energy and spectral distribution on separate laser peaks. Promising prospects of REP DD employment for pumping nitrogen gas lasers was demonstrated which suggest that diffuse discharge can be efficient for pumping a wide range of gas lasers operating on gas mixtures with electro-negative gases, for example, excimer and non-chain chemical lasers.

Original languageEnglish
Pages (from-to)210-218
Number of pages9
JournalOptics Communications
Volume430
DOIs
Publication statusPublished - 1 Jan 2019

Fingerprint

Pumping (laser)
Gas lasers
Lasers
gas lasers
Nitrogen
Electrons
lasers
nitrogen lasers
pumping
Chemical lasers
Helium
Electron transitions
Laser modes
Gas mixtures
chemical lasers
Light sources
Gases
excimers
blades
gas mixtures

Keywords

  • Diffuse discharge
  • N laser
  • Ultimate efficiency

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Efficient N2 laser pumped by nanosecond diffuse discharge. / Panchenko, Alexei N.; Tarasenko, Victor F.; Lomaev, Mikhail I.; Panchenko, Nikolay A.; Suslov, Alexei I.

In: Optics Communications, Vol. 430, 01.01.2019, p. 210-218.

Research output: Contribution to journalArticle

Panchenko, Alexei N. ; Tarasenko, Victor F. ; Lomaev, Mikhail I. ; Panchenko, Nikolay A. ; Suslov, Alexei I. / Efficient N2 laser pumped by nanosecond diffuse discharge. In: Optics Communications. 2019 ; Vol. 430. pp. 210-218.
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