We have observed a transition from the superluminal to subluminal velocity for optical pulses in the anomalous dispersion region of a resonantly absorbing medium. The pulse velocity is described by a new expression of group velocity using the saddle point method.


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    Title :

    Superluminal pulse propagation and group velocity in anomalous dispersion region of an absorbing medium


    Contributors:
    Talukder, A.I. (author) / Ito, T. (author) / Amagishi, Y. (author) / Tomita, M. (author)


    Publication date :

    2001-01-01


    Size :

    154216 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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