Electromagnetically induced transparency in a five-level cascade system under Doppler broadening: an analytical approach

We develop an analytical approach on electromagnetically induced transparency (EIT) in a Doppler broadened medium consisting of five-level cascade systems excited by a strong coupling and weak probe laser fields. In a weak field limit of the probe light, EIT spectrum is interpreted as functions of c...

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Bibliographic Details
Published in:Physica scripta 2016-03, Vol.91 (3), p.35401-35407
Main Authors: Khoa, Dinh Xuan, Trong, Pham Van, Doai, Le Van, Bang, Nguyen Huy
Format: Article
Language:English
Subjects:
Cascades
Coupling
Doppler
Doppler broadening
Doppler effect
electromagnetically induced transparency
Excitation
Lasers
Mathematical analysis
quantum interferences
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Summary:We develop an analytical approach on electromagnetically induced transparency (EIT) in a Doppler broadened medium consisting of five-level cascade systems excited by a strong coupling and weak probe laser fields. In a weak field limit of the probe light, EIT spectrum is interpreted as functions of controllable parameters of the coupling light and temperature of the medium. The theoretical interpretation of EIT spectrum is applied to the case of 85Rb atoms and compared with available experimental observation. Such an analytical interpretation provides quantitative parameters to control properties of the Doppler broadened EIT medium, and it is useful to find related applications.
ISSN:0031-8949
1402-4896
DOI:10.1088/0031-8949/91/3/035401