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.
Superluminal pulse propagation and group velocity in anomalous dispersion region of an absorbing medium
2001-01-01
154216 byte
Conference paper
Electronic Resource
English
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