QUASI-STEADY LASER OSCILLATION IN THE RECOMBINING HYDROGEN PLASMA
Hara,T., Kodera,K., Hamagaki,M., Matsunaga,K., Inutake,M., Dote,T.: 1980,
Jpn.J.Appl.Phys., 19, L606.
A quasi-steady laser oscillation at 1.88 microns has been observed in a pure
hydrogen plasma. The high density plasma produced by a high power quasi-steady
MPD arc-jet operating at 8.1 kA of the discharge current and 0.1 g/s of
hydrogen flow is cooled by expanding itself into the vacuum chamber.
Experimental results confirm that some population inversions occur as a
consequence of recombination and subsequent electron thermalization.
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