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Superluminal pulse reflection from a weakly absorbing dielectric slab

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Abstract

Group delay for a reflected light pulse from a weakly absorbing dielectric slab is theoretically investigated, and large negative group delay is found for weak absorption near a resonance of the slab [Re(kd)=mπ]. The group delay for both the reflected and transmitted pulses will be saturated with an increase of the absorption.

© 2006 Optical Society of America

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