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

doi:10.1103/PhysRevLett.50.41

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

Condensed Matter Physics

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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 language	English
Pages (from-to)	41-44
Number of pages	4
Journal	Physical review letters
Volume	50
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.50.41
Publication status	Published - 1983

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.50.41

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

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.",

author = "S. Miyake and K. Tsuchida and Y. Uehara and W. Sasaki and Y. Watanabe and J. Fujita",

year = "1983",

doi = "10.1103/PhysRevLett.50.41",

language = "English",

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journal = "Physical Review Letters",

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T1 - Direct measurement of population inversion in a recombining hydrogen plasma by the laser-induced fluorescence method

AU - Miyake, S.

AU - Tsuchida, K.

AU - Uehara, Y.

AU - Sasaki, W.

AU - Watanabe, Y.

AU - Fujita, J.

PY - 1983

Y1 - 1983

N2 - 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.

AB - 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.

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DO - 10.1103/PhysRevLett.50.41

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

Abstract

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