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Open Physics

formerly Central European Journal of Physics

Editor-in-Chief: Seidel, Sally

Managing Editor: Lesna-Szreter, Paulina


IMPACT FACTOR 2018: 1.005

CiteScore 2018: 1.01

SCImago Journal Rank (SJR) 2018: 0.237
Source Normalized Impact per Paper (SNIP) 2018: 0.541

ICV 2017: 162.45

Open Access
Online
ISSN
2391-5471
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Volume 9, Issue 4

Issues

Volume 13 (2015)

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

Marina Movsisyan / Svetlana Shmavonyan / Aram Papoyan
Published Online: 2011-04-30 | DOI: https://doi.org/10.2478/s11534-011-0011-x

Abstract

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: Zeeman pumping; population inversion; radiation amplification; polarization

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About the article

Published Online: 2011-04-30

Published in Print: 2011-08-01


Citation Information: Open Physics, Volume 9, Issue 4, Pages 948–955, ISSN (Online) 2391-5471, DOI: https://doi.org/10.2478/s11534-011-0011-x.

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© 2011 Versita Warsaw. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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