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Role of population transfer under strong probe conditions in electromagnetically induced transparency

Pandey, Kanhaiya and Kaundilya, Dipankar and Natarajan, Vasant (2011) Role of population transfer under strong probe conditions in electromagnetically induced transparency. In: Optics Communications, 284 (1). pp. 252-255.

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Official URL: http://dx.doi.org/10.1016/j.optcom.2010.08.031

Abstract

We analyze theoretically the phenomenon of electromagnetically induced transparency (UT) under conditions where the probe laser is not in the usual weak limit. We consider the effects in both three-level and four-level systems, which are either closed or open (due to losses to an external metastable level). We find that the EIT dip almost disappears in a closed three-level system but survives in an open system. In four-level systems, there is a narrow enhanced-absorption peak (EITA) at line center, which has applications as an optical clock. The peak converts to an EIT dip in a closed system, but again survives in an open system. (C) 2010 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science B.V.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 03 Mar 2011 12:32
Last Modified: 03 Mar 2011 12:32
URI: http://eprints.iisc.ernet.in/id/eprint/35796

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