Direct measurement of population inversion in a recombining hydrogen plasma by the laser-induced fluorescence method

S. Miyake, K. Tsuchida, Y. Uehara, W. Sasaki, Y. Watanabe, J. Fujita

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In a stationary recombining hydrogen plasma, resonance fluorescence of the Hα line is measured by the laser-induced fluorescence method. Population inversion between n=2 and n=3 levels is verified by the observation of the fluorescence reduction. Marked inversion is obtained only in the upstream region of a flowing recombining plasma. Extinction of the inversion towards the downstream region is explained by the effect of the plasma opacity.

Original languageEnglish
Pages (from-to)41-44
Number of pages4
JournalPhysical review letters
Volume50
Issue number1
DOIs
Publication statusPublished - 1983

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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