Repetitively pulsed operating regime of a high-pressure atomic xenon transition laser

The repetitively pulsed regime of an atomic xenon transition laser pumped by an electron beam with various pulse durations and an electron-beam-initiated discharge is studied experimentally. An average radiation power of 2.5 W has been achieved in a quasi-stationary regime for a pulse repetition rat...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2004-06, Vol.34 (6), p.519-523
Main Authors: Alekseev, S B, Koval', N N, Orlovskii, Viktor M, Skakun, V S, Tarasenko, Viktor F, Tolkachev, Valerii S, Fedenev, A V, Shulepov, M A, Shchanin, Pyotr M
Format: Article
Language:English
Subjects:
ACCELERATORS
AMPLITUDES
ARGON
ATOMIC AND MOLECULAR PHYSICS
BEAMS
DISPERSIONS
ELECTRICAL PUMPING
ELECTRON BEAM PUMPING
ELECTRON BEAMS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
GASES
LASERS
LEPTON BEAMS
MIXTURES
NONMETALS
PARTICLE ACCELERATORS
PARTICLE BEAMS
PRESSURE RANGE
PRESSURE RANGE MEGA PA
PRESSURE RANGE MEGA PA 10-100
PULSES
PUMPING
RARE GASES
STEADY-STATE CONDITIONS
XENON
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Summary:The repetitively pulsed regime of an atomic xenon transition laser pumped by an electron beam with various pulse durations and an electron-beam-initiated discharge is studied experimentally. An average radiation power of 2.5 W has been achieved in a quasi-stationary regime for a pulse repetition rate of 5 Hz in a laser pumped by a radially convergent electron beam of duration 100 {mu}s without circulation of the Ar - Xe working mixture. The average output power for a laser pumped by a planar electron beam in quasi-stationary regime is 2 W. It is shown that for a specific energy contribution not exceeding 50 J L{sup -1} and laser excitation by a train of electron-beam pulses at a repetition rate of 50 Hz, the amplitude and duration of the second lasing pulse virtually coincide with those of the first. For a laser pumped by a discharge initiated by a nanosecond electron beam, an average lasing power of 380 mW is achieved under steady-state conditions upon transverse circulation of the working mixture and a pump pulse repetition rate of 25 Hz. Pumping by an electron beam from two accelerators with a pulse duration of a few tens of microseconds under an Ar - Xe mixture pressure of about 1 atm and a specific pump power of 1 - 3 kW cm{sup -3} per pulse is proposed for the development of 1.73-{mu}m repetitively pulsed Xe lasers with a high average output power. (lasers)
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2004v034n06ABEH002766