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Type: Journal article
Title: A systemized view of superluminal wave propagation
Author: Withayachumnankul, W.
Fischer, B.
Ferguson, B.
Davis, B.
Abbott, D.
Citation: Proceedings of the IEEE, 2010; 98(10):1775-1786
Publisher: IEEE-Inst Electrical Electronics Engineers Inc
Issue Date: 2010
ISSN: 0018-9219
Statement of
Withawat Withayachumnankul, Bernd M. Fischer, Bradley Ferguson, Bruce R. Davis and Derek Abbott
Abstract: This paper reviews earlier studies on superluminal wave propagation in anomalously dispersive media that have been carried out in the electronic, microwave, and optical regimes. Those studies are relevant to observation of modulated Gaussian pulses transmitted through various media at speeds apparently faster than c without distortion. This paper also presents the condition for superluminal propagation that is established based on the magnitude-phase relation of a causal and minimum-phase filter. Since the condition is modeled on the basis of filter theory, it is applicable to all types of media. A terahertz experiment with a periodic bandgap structure is also included to illustrate superluminal propagation.
Keywords: Filter theory; photonic crystals; pulse shaping; superluminal propagation; terahertz radiation
Rights: © 2010 IEEE
RMID: 0020101219
DOI: 10.1109/JPROC.2010.2052910
Appears in Collections:Electrical and Electronic Engineering publications

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