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Role of dressed-state interference in electromagnetically induced transparency

Khan, Sumanta and Bharti, Vineet and Natarajan, Vasant (2016) Role of dressed-state interference in electromagnetically induced transparency. In: PHYSICS LETTERS A, 380 (48). pp. 4100-4104.

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Official URL: http://dx.doi.org/10.1016/j.physleta.2016.10,030


Electromagnetically induced transparency (EIT) in three-level systems uses a strong control laser on one transition to modify the absorption of a weak probe laser on a second transition. The control laser creates dressed states whose decay pathways show interference. We study the role of dressed-state interference in causing EIT in the three types of three-level systems-lambda (Lambda), ladder (Xi), and vee (V). In order to get realistic values for the linewidths of the energy levels involved, we consider appropriate hyperfine levels of Rb-87. For such realistic systems, we find that dressed-state interference causes probe absorption-given by the imaginary part of the susceptibility-to go to zero in a A system, but plays a negligible role in Xi and V systems. (C) 2016 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 30 Dec 2016 05:56
Last Modified: 30 Dec 2016 05:56
URI: http://eprints.iisc.ac.in/id/eprint/55594

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