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    Short Pulse Propagation in an Inverted Two-Level Medium

    Grigoryan, G. and Chaltykyan, V. and Paturyan, Vanush (2011) Short Pulse Propagation in an Inverted Two-Level Medium. Optical Memory and Neural Networks, 20 (4). pp. 233-236. ISSN 1060-992X

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    We consider propagation of a pulse carrying optical information in a resonant medium of twolevel atoms and revisit the concept of the group velocity. We obtain conditions when this concept may be used and show that in a population inverted medium the possible superluminal propagation may result in advance times much shorter than the pulse duration because of lethargic amplification following from the complete exact solution of the problem.

    Item Type: Article
    Additional Information: The definitive version of this article is available at DOI: 10.3103/S1060992X11040035 © Allerton Press, Inc., 2011.
    Keywords: resonant medium; superluminal propagation; group velocity;
    Academic Unit: Faculty of Science and Engineering > Computer Science
    Item ID: 4194
    Depositing User: Vanush Paturyan
    Date Deposited: 06 Feb 2013 15:49
    Journal or Publication Title: Optical Memory and Neural Networks
    Publisher: Springer Verlag
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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