Coulomb broadening of the peak of electromagnetically induced transparency in plasma

S. A. Babin, M. G. Stepanov, D. V. Churkin, D. A. Shapiro

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

We have measured the shape of the Autler-Townes doublet and the peak of electromagnetically induced transparency (EIT) under plasma conditions. We compare the experimental results with the calculated spectrum of the probe field of a three-level ArII A-scheme by taking into account Coulomb collisions. We show that the Coulomb broadening of the EIT peak is small (less than 40%), while the saturation resonance is broadened under the experimental conditions by a factor of 3. In contrast to the saturation resonance attributable to the Bennett dip in the velocity distribution of the population, the EIT peak is a coherent effect and is broadened mainly through Coulomb dephasing.

Original languageEnglish (US)
Pages (from-to)953-959
Number of pages7
JournalJournal of Experimental and Theoretical Physics
Volume98
Issue number5
DOIs
StatePublished - May 1 2004
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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