Abstract
OPTICAL, maser oscillation has been obtained during the recombination period following a pulsed radiofrequency or d.c. discharge in helium mixed with either neon or carbon monoxide at wave-lengths of 1.153µ and 1.069µ, respectively. No oscillation occurs during the 10 µsec excitation pulse although in pure neon a period of apparent optical gain and low-power oscillation at about 1.15µ is observed during the pulse.
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References
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Mathias, L. E. S. (private communication).
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BOOT, H., CLUNIE, D. Pulsed Gaseous Maser. Nature 197, 173–174 (1963). https://doi.org/10.1038/197173b0
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DOI: https://doi.org/10.1038/197173b0
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