Selective Excitation of Spectra by the High-Frequency Discharge

Details Selective Excitation of Spectra by the High-Frequency Discharge Selective Excitation of Spectra by the High-Frequency Discharge

Jul 1942

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1942natur.150..123a&link_type=abstract

Nature, Volume 150, Issue 3795, pp. 123 (1942).

Physics

Scientific paper

IN a series of preliminary investigations on the excitation of spectra by the high-frequency discharge, several interesting phenomena connected with intensity distribution have been observed, some of which have already been reported1. Further work indicates that these consist essentially in a redistribution of intensity among different band-systems of a diatomic molecule (that is, among different electronic energy levels) or among atomic energy states of different multiplicities. Thus the mercury spectrum observed shows that under certain well-defined and reproducible conditions, as for example pressure of gas, frequency of exciting oscillations, etc., only those lines are present which involve triplet initial states. Similarly, again under definite conditions, mainly those band systems of carbon monoxide are excited which involve only the singlet levels.

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