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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