Transformation of EIA to EIT by incoherent pumping of the 85Rb D1 line

We have observed a transformation from electromagnetically-induced absorption (EIA) to electromagnetically induced transparency (EIT) in open systems of the 85 Rb D 1 line by adding an incoherent optical pumping laser. This result raises a new question about recent theoretical work which does not ad...

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Bibliographic Details
Published in:Journal of the Korean Physical Society 2012, 61(8), , pp.1227-1231
Main Authors: Yu, Hoon, Kim, Jung Dong, Jung, Tae Young, Kim, Jung Bog
Format: Article
Language:English
Subjects:
Mathematical and Computational Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Research Papers
Theoretical
물리학
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Summary:We have observed a transformation from electromagnetically-induced absorption (EIA) to electromagnetically induced transparency (EIT) in open systems of the 85 Rb D 1 line by adding an incoherent optical pumping laser. This result raises a new question about recent theoretical work which does not address the degree of open. The pump beam only plays a role in transferring atoms by a spontaneous transition into the interacting system for EIT observation, which is an incoherent process. The dependence of the absorption spectra on the intensity and the polarization of each laser beam were observed. We have found the same tendencies in all transitions except the F = 2 ↔ F′ = 3 transition of the 85 Rb D 1 line, which is the system that almost satisfies conventional EIA conditions.
ISSN:0374-4884
1976-8524
DOI:10.3938/jkps.61.1227