Study of the UV emission of an inductive nitrogen laser

Journal Article · Sat Oct 31 00:00:00 EDT 2009 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2009V039N10ABEH014068· OSTI ID:21476622

Razhev, A M; Churkin, D S ^[1]; Zhupikov, A A ^[2]

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1. Novosibirsk State University, Novosibirsk (Russian Federation)
2. Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation)

Lasing at 337.1 and 357.7 nm is obtained upon excitation of nitrogen molecules by a toroidal pulsed inductive discharge. A system for formation of a pulsed inductive discharge for exciting gas lasers is described. The spontaneous emission spectra of the nitrogen inductive discharge plasma and the emission spectrum of the nitrogen laser are recorded and interpreted. The dependences of the energy and duration of laser pulses on the resonator Q factor and pump level are studied. The output energy of the inductive nitrogen laser emitting 15{+-}1-ns pulses achieves 4.5 mJ. The generation of high-power 300-kW pulses is obtained for the first time at a low ({approx}1 Torr) pressure of pure nitrogen. The spatial distribution of the laser radiation intensity in the discharge tube cross section is investigated. The cross section of the radiation beam of the inductive nitrogen laser had the shape of a ring with the external diameter of 34 mm and width {approx}4 mm, its divergence being {approx}0.8 mrad. The average output power of the laser achieved 120 mW at a pulse repetition rate of 30 Hz. (lasers)

• OSTI ID: 21476622
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 10 Vol. 39; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
BEAMS
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRON TUBES
ELECTRONIC EQUIPMENT
ELEMENTS
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
EXCITATION
GAS DISCHARGE TUBES
GAS LASERS
LASER RADIATION
LASERS
MOLECULES
NITROGEN
NONMETALS
PLASMA
PULSES
RADIATIONS
RESONATORS
SPATIAL DISTRIBUTION
SPECTRA