On Superluminal Propagation

A simple but effective structure supporting superluminal group-velocities is analytically investigated in this letter. This model is used to explain the physical phenomena causing the apparent time-advancement of pulse-peaks measured in several experiments described in the technical literature. The...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2008, Vol.7, p.101-104
Main Authors: Peverini, O.A., Tascone, R., Addamo, G., Virone, G., Orta, R.
Format: Article
Language:English
Subjects:
Dispersive material
Distributed parameter circuits
Electromagnetic measurements
Electromagnetic propagation
group-delay
Impedance
L-band
Microwave propagation
Optical propagation
Optical waveguides
Pulse measurements
superluminal effect
Transfer functions
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Summary:A simple but effective structure supporting superluminal group-velocities is analytically investigated in this letter. This model is used to explain the physical phenomena causing the apparent time-advancement of pulse-peaks measured in several experiments described in the technical literature. The reported analysis is applied to an L-band cavity, for which group-velocities 20 times higher than c are measured.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2008.916678