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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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|
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