Article

Zeitschrift für Physik D Atoms, Molecules and Clusters

, Volume 11, Issue 2, pp 119-121

First online:

The Stark broadening of the He I 667.8 nm line

  • B. T. VujičićAffiliated withFaculty of Natural Sciences, Institute of Physics
  • , S. DjurovićAffiliated withFaculty of Natural Sciences, Institute of Physics
  • , J. HalenkaAffiliated withInstitute of Physics, Pedagogical University

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Abstract

The half-width and asymmetry parameter of the He I 21 P–31 D λ=667.8 nm line have been measured in a laser produced He plasma for electron densitiesN e between 7×1022 m−3 and 1.7×1023 m−3. Results, obtained for the half-width, agree very well with the theoretical results forN e ≲1023 m−3 and the agreement becomes somewhat worse forN e >1023 m−3. We have measured the red asymmetry which is considerable lower than the theoretical one. We have also established good agreement with theoreticalj A,R (x) profile for this line.

PACS

32.60.S 32.70