Amplification of radiation in atomic vapor induced by a linearly polarized laser radiation

• Authors: Marina Movsisyan , Svetlana Shmavonyan , Aram Papoyan
• Languages of publication: EN

Abstracts

EN

We present the results of spectroscopic and polarization studies of dilute rubidium vapor exposed to a single-frequency linearly polarized diode laser radiation in a spectral range of atomic D2 line. We report the origin of a circularly polarized radiation on V-type transitions of 87Rb F
g = 2 → F
e = 3 and 85Rb F
g = 3 → F
e = 4, and amplification of this radiation in backward direction caused by a partial population inversion among magnetic sublevels of the ground and excited levels. This is confirmed experimentally by high directivity of backward radiation, absence in its spectrum of 85Rb F
g = 2 → F
e = 1 (Λ-type) radiation, as well as by different nature of intensity dependences of backward and fluorescence radiations.

Keywords

EN

Zeeman pumping; population inversion; radiation amplification; polarization

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2011
• Volume: 9
• Issue: 4
• Pages: 948-955

Dates

published

1 - 8 - 2011

online

30 - 4 - 2011

Contributors

author

Marina Movsisyan

• Institute for Physical Research, NAS of Armenia, Ashtarak-2, 0203, Armenia

author

Svetlana Shmavonyan

• Institute for Physical Research, NAS of Armenia, Ashtarak-2, 0203, Armenia

author

Aram Papoyan

• Institute for Physical Research, NAS of Armenia, Ashtarak-2, 0203, Armenia

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Identifiers

DOI

10.2478/s11534-011-0011-x