Coulomb broadening of the peak of electromagnetically induced transparency in plasma

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

doi:10.1134/1.1767562

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 journal › Article › peer-review

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 language	English (US)
Pages (from-to)	953-959
Number of pages	7
Journal	Journal of Experimental and Theoretical Physics
Volume	98
Issue number	5
DOIs	https://doi.org/10.1134/1.1767562
State	Published - May 2004
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1134/1.1767562

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title = "Coulomb broadening of the peak of electromagnetically induced transparency in plasma",

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.",

author = "Babin, \{S. A.\} and Stepanov, \{M. G.\} and Churkin, \{D. V.\} and Shapiro, \{D. A.\}",

note = "Funding Information: O.V. Belai for help with numerical calculations; and V.V. Potapov who designed the experimental setup. This work was supported by the Russian Foundation for Basic Research (project no. 02-02-39025) and the Program of State Support for Leading Scientific Schools (project no. NSh-439.2003.2).",

year = "2004",

month = may,

doi = "10.1134/1.1767562",

language = "English (US)",

volume = "98",

pages = "953--959",

journal = "Journal of Experimental and Theoretical Physics",

issn = "1063-7761",

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TY - JOUR

T1 - Coulomb broadening of the peak of electromagnetically induced transparency in plasma

AU - Babin, S. A.

AU - Stepanov, M. G.

AU - Churkin, D. V.

AU - Shapiro, D. A.

N1 - Funding Information: O.V. Belai for help with numerical calculations; and V.V. Potapov who designed the experimental setup. This work was supported by the Russian Foundation for Basic Research (project no. 02-02-39025) and the Program of State Support for Leading Scientific Schools (project no. NSh-439.2003.2).

PY - 2004/5

Y1 - 2004/5

N2 - 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.

AB - 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.

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JO - Journal of Experimental and Theoretical Physics

JF - Journal of Experimental and Theoretical Physics

IS - 5

ER -

Coulomb broadening of the peak of electromagnetically induced transparency in plasma

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