Agarwal, G. S. ; Nath Dey, Tarak ; Menon, Sunish (2001) A knob for changing light propagation from subluminal to superluminal Physical Review A, 64 (5). 053809_1-053809_4. ISSN 1050-2947
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Official URL: http://pra.aps.org/abstract/PRA/v64/i5/e053809
Related URL: http://dx.doi.org/10.1103/PhysRevA.64.053809
Abstract
We show how the application of a coupling field connecting the two lower metastable states of a Λ system can produce a variety of effects on the propagation of a weak electromagnetic pulse. In principle the light propagation can be changed from subluminal to superluminal. The negative group index results from regions of anomalous dispersion and gain in susceptibility.
Item Type: | Article |
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Source: | Copyright of this article belongs to The American Physical Society. |
ID Code: | 78366 |
Deposited On: | 19 Jan 2012 12:19 |
Last Modified: | 18 May 2016 21:12 |
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